Daisy’s great night vision helped her to slip out in the middle of the night!

Daisy left to go foraging at 15:31:45 on a soggy Sydney Friday afternoon. She returned to her eggs at 17:49:49. Two hours and eighteen minutes. Not bad! There was some concern over the wet nest and the cool temperatures but, Daisy knows best!

Like all of her returns recently, Daisy is hyper cautious. She lands on the nest and looks around. Then she listens. We have all seen how the WBSE can arrive in a split second!

Overly cautious when returning from her dabbling.

Daisy even stops to do some preening.

Preening

Then, all of a sudden, Daisy rushes over to get on her eggs. She is a bit of a blur in the image below. Gosh that nest is wet and soggy.

There is plenty of time for the sea eagles or the ravens to return to the nest before the sun sets but, they don’t. Sometimes boring quiet days are the best – even for humans, too!

Daisy settles into incubating.

Not everyone believes that ducks have good night vision. Some people think that birds can only see during the daylight hours – any kind of bird. And if you have bird feeders you will have seen the songbirds arrive at dawn and depart at dusk. Falcons and hawks do that and so do sea eagles. But we have seen Daisy return after dark when the sea eagles have arrived before dusk. And we have watched her leave around 4:00 one morning and return before day break.

Last night Daisy left her nest at 2:45. She tried to cover it up as good as she could but the down is so soggy! She returns forty-five minutes later. Daisy probably took a bathroom break. But again, this solidifies our knowledge that ducks can see when it is very dark. Daisy has been able to freely move around in the forest.

I began to think that she should move any ducklings that do hatch under the cover of darkness while all of their predators are sleeping! Except, of course, BooBook Owl.

Daisy covers her eggs.
Down is wet, some eggs exposed.

You can see in the image above that some of the eggs are exposed. Daisy has done the best ever with that old wet down. Surely the Ravens are asleep and I think that the little owl will not bother them, hopefully. Daisy returns and all is well at her nest.

It is Saturday in Australia. At dawn, the temperature is 21.8 degrees C and they are predicting more showers. However, it should get fairly hot on Sunday rising to 26. This really could be a help in drying out all that down and making it fluffy again.

In the image below, it is 5:30. Daisy is waking up and waiting to see if the sea eagles will fly through the forest trying to catch her. They certainly have done this a few times lately.

Daisy is alert at dawn.

But no one comes. By 7:00 the glow of the morning is spreading across the forest. Daisy is trying to catch some rest. She has her beak tucked under her wing.

Daisy resting.

Wow! Look at the beautiful markings on Daisy’s head and those gorgeous brown eyes.

In the image below, Daisy is rolling her eggs. Remember that Daisy plucked down from her own breast to line the nest and help keep the eggs war. Removing the down creates a bald spot known as the brood patch. This touches the eggs and transfers the heat from Daisy to the eggs so that the duckling can grow. But the eggs cannot simply sit there. They must receive even heat. Daisy uses her bill and her feet to roll the eggs and move them about so that they each receive the same amount of heat. Rolling helps ensure that each of the developing ducklings will hatch at roughly the same time.

Daisy has her beak in the nest turning the eggs and her feet are also gently paddling them. Daisy is such a good mother!

Rolling eggs

It is only 7:30 in Sydney. Wet and cool. So far the WBSE have not ventured into the forest and even the Ravens are not moving about. Let us hope that it is simply a boring day for Daisy!

I will post an update on Daisy’s Day about 11pm CDT. Stay tuned for any happenings during the day. Still, I hope that there is nothing to report.

A big welcome to Daisy’s new fans from Belgium. Our girl is so happy that people around the world care about her plight.

Thank you to Sea Eagle cam, Birdlife Australia, and the Discover Centre for providing the camera so that I could capture the screen shots.

Catching up with Miss Daisy

You will remember from my earlier posting today that our favourite little duck, Daisy, got home to her nest at 19:03. A couple of hours later and not having any evening contact with the mated pair of White Bellied Sea Eagles, Daisy was relaxing. And then BooBook Owl came and scared the wits out of her. She did not leave her nest but she got in defensive posture ready to protect her nest. At first Boo flew low right over Daisy on the nest. It is 20:51:40.

In the image below, Boo is nothing more than a blur as she flies directly over the centre of the big sea eagle nest. She is so close that she almost touches Daisy when she does the fly through.

The blur of BooBook Owl.

Daisy immediately gets into defensive posture. Boo circles the nest flying around the branches, going round and round. It keeps Daisy attentive and moving with the small owl. She always wants to know where the owl is. At 21:06:35 Boo lands on one of the small branches up near the top right corner of the image below. You can see the legs on the branch but not clearly. Look carefully. The left leg appears lighter than the right.

Defensive posture.
Boo moves closer down the branch to have a good look at Daisy.

BooBook Owl finally decides to sit closer to Daisy. Now you can see the eyes, the beak and the left leg along with the little owl’s body.

Boo is a nuisance to our Daisy, right now. She is also curious about this little duck in the sea eagle nest. Boo is used to bumping into the eagles in the night often injuring Lady’s eye. Boo is especially aggressive when she has her own nest of babies, November-December, and would love it if she could harass the sea eagles enough to get them to leave the forest. Fat chance on that happening!

BooBook Owl courtesy of Wikimedia Commons

Boobook is the smallest owl in Australia. Owls are nocturnal so that is why Boo only pesters Daisy after dark. Boo will hunt all kinds of insects and very small mammals such as mice, small bats, and moths. Boo is about 27-36 cm tall or 10-14.5 inches, and weighs only 140-360 grams or 5 ounces to 12.6 ounces. The wings span ranges from 188-261 mm, or 7-10 inches. In comparison, remember that the White-Bellied sea eagle is the largest bird in Australia with a wing span of 2-2.3 metres, standing 80-90 cm tall and weighing 2.5 to 4 kg. Pacific Black Ducks are approximately 54-61 cm or 21 to 24 inches in length and they weigh 1025-1114 grams or 2.25 to 2.4 pounds. Daisy is bigger than Boo but the most important thing for her right now are her precious eggs and their protection. Boo could make a terrible mess and while the little owl does eat insects and bats along with mice, it might also be interested in Daisy’s eggs.

The sea eagles did not show up this morning. They were at Goat Island and it was raining and windy. Daisy’s morning was, as posted earlier, rather uneventful til she starting listening and raising her neck listening to the vocalizations from the other birds in the forest.

At 9:29 the ravens arrive. You cannot see them but Daisy heard them coming and knows they are about on the nest tree. The little duck immediately goes into a defensive posture. Notice, in the image below, how she has fanned out her tail and she has her feathers puffed up. This makes her look larger.

The Unkindness stay for approximately twenty minutes. Daisy moved as they did, just like she did when Boo was on the nest tree. She always kept her head tucked, her tail fanned, and her other feathers puffed.

As the day wore on, there were periodic showers on the nest. Daisy did some housekeeping, moving leaves closer to the nest in case she needed them for cover.

By noon, Daisy was relaxed and ready to take a wee bit of a rest. She tucks her bill in under her wing for warmth. Instead of being 40 degrees C like it was two days ago, today it is only in the low 20s with showers. What a change in temperature!

Daisy begins sweeping the leaves toward the nest and tucking the now dry down inside. She is preparing to go foraging. It is 13:58:14. This is quite a bit earlier than the last several days.

Daisy has camouflaged her nest well. In with the fluffy down are some leaves and twigs.

Leaves and twigs help hide the nest.

It is now 16:04 and Daisy has not returned to the nest. She often returns around 19:00 or 20:00 right before dusk but when she has left this early she has come back around 16:45. One day Dad had arrived and she had to abort her landing on the nest to avoid him seeing her. I wonder when she will come home today?

Thank you so much for joining Daisy and her adventures in the big sea eagles nest!

Thank you to Sea Eagle cam, Birdlife Australia, and the Discovery Centre for providing the cameras where I did my screen captures.

Oops. Too close for comfort!

Before I bring all of you up to date on our cute little duck, Daisy, Daisy wants to thank everyone from Canada, the US, Australia, and all the people from Poland who are concerned about her and come to check on how her day has been going. The last 20 hours have been anxious ones for Daisy.

Zanim opowiem wam wszystkim o naszej uroczej małej kaczce, Daisy, Daisy chce podziękować wszystkim z Kanady, Stanów Zjednoczonych, Australii i wszystkim ludziom z Polski, którzy się o nią martwią i przyjeżdżają sprawdzić, jak minął jej dzień. jechałem. Ostatnie 20 godzin było niespokojnych dla Daisy.

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It had been so hot on the nest, with the temperature rising to 36 C, that Daisy took another break, yesterday, at 16:14:38. It had only been four hours since she returned from her last break. The heat is very hard on Daisy. She has lost so much weight and her stores of calcium creating eggs, laying them, and now brooding. And unlike other mated pairs of birds, she has no one to bring her food to the nest or to relieve her. Daisy is all alone. There is no one to even protect her from predators except herself. And the predators are lurking about today.

Daisy sitting in the hot sun before she takes her break.
Daisy carefully covers up her nest of eggs with lots of leaves and other plant material.
Daisy using her bill to get more leaves to cover her nest.
Only a little bit of down is showing!

While Daisy is away dabbling, one of the White Bellied Sea Eagles flies in to check on the nest.

Dad sits on the branch at 20:04:58

WBSE ‘Dad’ looked out all over his territory and waited by the nest right at dusk to see if anyone was there. But no one! You don’t see anyone on the White Bellied Sea Eagle nest, do you?

Daisy was very lucky.

Daisy returned to the nest at 20:15:36. Our little duck might not be a permanent resident of the forest but she has learned how to listen and tell when the big eagles are about. She waited until she was certain that Dad would not be returning. They missed one another by eleven minutes!

Daisy carefully returns to her nest.

The sun had completely gone down by the time Daisy returned to her nest. Don’t ever let anyone tell you that ducks are not smart. So far she has used all of the powers that she has to keep her and her eggs safe. And we have also learned something. Daisy has much better night vision that the sea eagles. In the image above she is carefully returning to her nest. She does not want to drawn any attention to where her eggs are.

There are no visitors to Daisy’s nest during the night. She is awake many times preening or turning her eggs. The sun will be coming up in about half an hour.

Daisy is awake on her nest at 15:53.

It is going to be 40 degrees in Homebush Bay, Australia where the duck nest in the Ironbark Tree is located. I wonder if Daisy will go out to forage and cool down before dawn?

Daisy thinks she has heard something in the forest.

Daisy decided against going out to forage. But at 5:50 am, she raises her neck. She has heard something!

Daisy has a split second to get off her eggs before the Sea Eagle lands on the nest! In the image below you can see her flying directly off the eggs to get out of the way of danger.

Daisy flies directly off the nest and out of the tree.

Daisy had no time to cover up her eggs. The White Bellied Sea Eagle lands just as Daisy clears the big branch. It is 5:50 am.

Daisy had to leave the eggs uncovered,

The White Bellied Sea Eagle walks over to check on the nest and look around.

First of the sea eagles lands and looks around.

In a few minutes the second White Bellied Sea Eagle comes to the nest in the old Ironbark Tree. In unison, they both look down at the eggs.

For some time, the sea eagles have appeared utterly confused by what is happening in their nest. Who has laid these eggs? Where are they? Who are they?

I often wonder if they think it is a bigger bird trying to take over their territory. There is, of course, no concern that a tiny little duck would want to do that.

Utterly confused.

Both of the sea eagles look like they are talking to themselves. One of my friends thinks that this could be a very funny conversation between Dad and Lady with Dad trying to explain to Lady that he has nothing to do with these eggs.

WBSE look like they are having a confab.

Once again, the White Bellied Sea Eagles do not disturb the nest. They are curious about the intruder into their territory but they do not appear to be hostile to the eggs. It is all quite interesting.

For a few minutes both of them are on one of the branches of the big Ironbark Tree. You can barely make out one on the branch that cuts through the middle of the right hand side of the image.

Sea Eagles stay on the tree watching.

At 5:57 the sea eagles do the second of what is known as the ‘duet’. It is a morning greeting for the sun. At the same time it is also a sound they make when they are defending their territory. It is a series of honks.

Lady leaves at 6:11 but Dad stays on the branch for at least another hour. Meanwhile, Daisy eggs are exposed. It is 21.8 degrees C.

Exposed duck eggs.

Daisy returns at 7:50:11 and once again is very careful when she gets on her nest. She has no more than relaxed and she begins to hear a commotion in the forest coming towards the nest tree. She raises her head to listen carefully.

Daisy listens to see who is coming.

Daisy listens very careful. It is the Ravens. The Unkindness comes to the tree at 7:58:06. They are cawing and Daisy is afraid. She fans out her feathers to not only make herself look larger than she is but also to protect her nest. Just like raptors protect their food, mantling.

Daisy stays still. You can see one raven on the top right.

The ravens leave after about ten minutes returning in half an hour to harass Daisy again. They want her to get off her eggs so they can eat them! Daisy remains still turning in the nest so that she can always see where the ravens are.

Whew! In the period of two and a half hours, Daisy has been frightened off her nest by the WBSE and has had two visits by the Ravens. It is getting hotter and hotter for our little duck. She is going to have to come and go often today if she is to stay cool. The humidity is 98% and the temperature is climbing steadily up to 40. Right now the nest is in the shade. It is nearly 11 am and maybe Daisy will now have a quiet day. The Ravens and the WBSE should be trying to find a spot to stay cool for the day.

I have checked with a person who knows about eggs. The Ironbark Tree is a very deep and wide tree. It actually holds the heat. Daisy’s nest is right in the middle. Even though she did not get to cover her nest and despite the fact that it was only 21 or 22 degrees C then, it is thought that the down and the warmth from the WBSE nest would have kept the eggs sufficiently warm. This is Day 15 of incubation. Let us hope so! The individual that told me about the temperature said that they were worried if the eggs got too hot from being exposed to direct sunlight. We learn something every day!

Thank you for joining Daisy. She hopes to have a nice quiet albeit hot day in the Sydney Olympic Park forest. I will provide an update if anything should happen in about six or seven hours. Otherwise Daisy and I will see you tomorrow. Good night. Stay safe!

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Thank you to Sea Eagle cam, Birdlife Australia, and the Discovery Centre for the cameras where I took my scaps.

Oh, it is going to be hot for Daisy!

Oh, welcome to The Daisy Chronicles, a daily update on the life of the little Black Pacific Duck that has made a nest in a White Bellied Sea Eagle nest in the Sydney Olympic Forest. It is Day 13 of incubation. We could be half way to hatch!

Och, witamy w The Daisy Chronicles, codziennej aktualizacji życia małej kaczki Black Pacific, która założyła gniazdo w gnieździe bielika morskiego w lesie olimpijskim w Sydney. Jest 13 dzień inkubacji. Mogliśmy być w połowie drogi do wyklucia!

————————————————————————————-It is 7:44 on the nest in Sydney, Australia and Daisy knew what the weather was going to be today. She got up early, at 4:13:44 to go for a swim and some foraging. The weather news says it will be 36 in Sydney today and it will be hotter on the nest with the direct sunlight at times.

How many times have you checked the weather only to find out that the weather report was wrong? When I was a little girl staying with my grandmother, she would open the front door of her house and ‘sniff’. Then she would declare that it was going to rain. At the time, not knowing anything, I thought she was a witch! How silly was that? But how do birds know the approaching weather?

Some say that the hollow bones of a bird help them determine the barometric pressure and, thus, they are able to anticipate incoming weather. Others say that it is the pressure plates within their ears. Daisy is not a bird but a waterfowl and still she anticipates the changing in temperature, rain, etc. That is because she, also, has hollow bones. Recent research at The University of Western Ontario suggests that birds have an internal barometer. They can tell even the slightest change in barometric pressure and temperature. And, of course, they have these skills because knowing if they should forage or hunt immediately, if rain or snow are coming, are essential to their survival. Researchers at the University tested their ideas by lowering and raising the air pressure inside a specially built wind tunnel. If they lowered the air pressure, the birds would immediately start looking for food and prey. Low pressure means that a storm or rain and winds is approaching. They might even have to find a safe place to stay for hours or even days depending on the strength of the storm. Likewise, if the barometric pressure and temperature rise a bit, the birds will have a reasonable morning in the nest preening before heading out to hunt or forage. Today, Daisy leaves her nest early because she knows that it is going to be very hot during the day and she may need to dabble several times rather than just one long foraging trip.

For those of you who are ‘sort of’ keeping up with Daisy, things have been relatively quiet for a few days. Today is day 13 of brooding. The WBSE ‘Dad’ made a surprise visit to the nest tree last evening at 16:59:24 but as quick as he appeared, he left at 17:03:43. I am sure he thought he would catch whoever was brooding in his nest. But Daisy has been very smart. And with the heat she may stay out foraging or dabbling longer. She landed on the rim of the nest at 19:49:49 but was very cautious looking around before venturing over to her eggs. In fact, she did not actually go over to the nest cup until 19:52, three minutes after arriving.

Daisy lands on the right side of the nest. She does not look at her nest and proceeds with caution in case there are predators about.
Daisy is listening and looking.

Daisy is very much aware that the White Bellied Sea Eagles come and go in the forest. Sometimes they stay for a few minutes, other times for many hours. She listens for the vocalizations from the other animals and birds in the forest to let her know if they might be coming. Her survival depends on it.

Daisy aerating her nest.
Satisfied that no one is around, Daisy sits on her eggs.
Daisy is busy as the sun sets and the Infra-Red cameras come on. Here she is fixing the down.

At 4:13, it is already more than 22 degrees C on the nest. Daisy is anticipating a very hot day. She has decided to go dabbling early before all of the other birds and animals in the forest are awake. You can see from the image below that it is still very dark in the forest. What we are learning is that Daisy, a Black Pacific Duck, can see in the dark better than the WBSE.

In fact, anyone observing this nest is learning a lot. No one can remember a Black Pacific Duck making their nest on a Sea Eagle camera or a place where we could easily observe without threatening the wildlife.

Daisy turns in the down and scatters the plant material around so no one will notice her eggs.

If you look carefully at the image above, you can see Daisy’s tail on the right behind the tree branch. She is just preparing to fly off to the water.

Daisy tucks her bill under her wing resting.

Daisy forages for a little over an hour. She returns to the nest and quickly bets on her eggs to incubate them. She rolls them with her paddle feet carefully and turns in the nest gently.

Daisy has returned from her morning foraging.

Daisy returns just after 5am. Sunrise is at 6:05. She knows that the sea eagles often fly into the forest at dawn. In the image below she has heard the sound of ravens. Ravens, you will remember, often chase the sea eagles. She listens carefully for several minutes before settling down.

Daisy raises her neck and listens for intruders.
Daisy resting.

By 8:30, Daisy has already had visits from at least one Sulphur-Crested Cockatoos and the Ravens were alarming at 8:04. Now the Rainbow Lorikeets can be heard in the forest but I cannot see them on the nest yet.

A Sulphur-Crested Cockatoo. Courtesy of Wikimedia Commons.

It is now after 10:00, and the sun is shining on Daisy in the nest. She has already starting panting in order to regulate her temperature.

The hot sun pounding down on Daisy.

It will be 36 degrees C in the forest today. It is understood that it is hotter on the nest. Look carefully and you can see Daisy’s bill open. That is her panting. The shade is ever so slowly moving over Daisy but the heat is almost unbearable. Instead of panting slowly, now it is a fast clacking of her bill.

Let us hope that it is way too hot for the sea eagles to be in the forest today. A day without sea eagles is a safe day for Daisy! And it is going to be so very hot that she doesn’t need a hassle with other predators either today.

Thank you to the Sea Eagle Cam, Birdlife Australia, and the Discovery Center for the camera that supplied the scaps of Daisy and her nest.

Gusts and a creaking Ironbark Tree kept the curious away

Daisy might have been awake all night with the loud creaks and swaying of the Ironbark Tree in the frequent gusts of high winds last night but not a single intruder was spotted. BooBook Owl stayed home. WBSE Dad didn’t venture out to check on the nest in the evening or this morning. It has been more than twenty-four hours since he has been about. Spotters on the ground say that he is off at Goat Island, some 12.2 km away, with Lady. And, so far, Raven has not made an appearance. It is nearly 7am, the tree is creaking gently and Daisy is quietly doing nest maintenance. If you squint your eye, the white in the down lining of the nest looks like little twinkle lights.

Notice how Daisy turns clockwise in the nest as she continues maintenance and rolling the eggs.
Daisy continues to take down from her breast adding it to the nest and turning clockwise.

Sometimes Daisy will quickly get off the eggs to go and fetch more plant material somewhere else on the big WBSE nest that she can’t reach by extending her neck as far as it can.

Daisy quickly leaves nest to gather up more plant material from the WBSE nest.

When Daisy prepares to leave to forage for food, which she did last evening for about an hour, she tucks the down into the nest cup folding it over on the inside. She also uses her beak and stretching her neck she pulls leaves up close. This way she can cover the eggs while she is away. Of course, we have now seen times when Daisy is frightened off the nest by both the WBSE Dad and BooBook Owl but, normally, she takes the time to gently and quickly conceal those precious eggs.

Daisy Stretches her Neck to bring in plant material near to the nest cup
Daisy continues to use her bill to bring in leaves and plant material close to the neck cup. She might be preparing to cover the eggs and leave for a quick morning foraging.

I wonder if you have ever thought about the amount of energy it takes a duck to lay an egg? I certainly hadn’t until this year when I watched Bald Eagles have hard labours when laying an egg and then Daisy. Those eggs don’t just pop out easy!

Sibley says that a single egg can weigh as much as 12% of the bird’s body weight. For Daisy, remember that she layed an egg every day for nine days. That has to be exhausting! Specials with precocial young often lay more eggs because the mother does not have to feed them. Precocial young are more fully developed when they hatch. Their eyes are open and they are fully feathered. In the case of the Black Pacific Ducks they can walk and find their own food. Remember that the ducklings will jump off the nest and follow the parent to the water to forage for food. They will actually jump off the nest before they are fully capable of flying like their mother. Daisy will keep them warm at night for approximately two to three weeks. Altricial young require much more care. They are born without feathers and require their parents to feed them until they are capable of self-feeding. A good example of an Altricial young is a Tree Swallow.

It is now after 10 am and Daisy has had only one intruder. The Raven showed up about 8am. Daisy quickly reached over and clacked, like she did yesterday, and off it went! Hopefully Daisy will have a non-eventful day on the nest. Fingers crossed!