Tag Archives: Arthur bringing prey to the nest

Late night Thursday edition of ‘As the Nest Turns’

The White-tail Eagle nest in the Matsula National Park in Estonia – one of the oldest known breeding territories in the country, has been fledging eaglets since the nineteenth century, if not before. Archives go back to 1870 with modern records from 1996-2020 indicating that no less than 29 eaglets fledged from the nest that Eve and Eerik currently call their own. So what has happened this year?

For two days now, Eve and Eerik have been mourning the loss of their two babies, EE1 and EE2. Long before the little ones stopped breathing, the couple knew. A parent was always there with them witnessing their last breath. It is a scene that many of us have observed at other nests this year. I remember too clearly the Captiva Bald Eagle Nest in Florida – on Santibel Island – when Hope and Peace both died of secondary rodenticide poisoning. Joe, the father was devastated, and I have often wondered if it wasn’t the death of his two eaglets that made him vulnerable and, eventually, evicted from the nest by Martin. Several years ago, stories of the injuries to Juliet at the NE Florida Bald Eagle nest and then the death of his eaglet, made Romeo abandon the Bald Eagle Nest in Jacksonville where his son, Samson, has now fledged his third-eaglet, Legacy (the two previous were Romy and Jules last year). Birds have memories and emotions, they mourn the dead, and understand. Laura Culley would challenge anyone who begged to differ, “And why wouldn’t they?” she was ask.

Eve and Eerik completely covered the babies, each spending time at the nest. Imagine that you have two seemingly healthy children and within a day they are both dead and you don’t know what happened. I use the term ‘seemingly healthy’, as the two eaglets were somewhat lethargic for several days before they died. It was extremely hot – one of those blasts of extreme heat that my friend ‘T’ from Strasbourg warned me about. I thought it was the heat that caused them to be less hungry and alert.

The experts in Estonia have mentioned that a sizeable number of large birds have been found dead along the coastline. Below is a Google Map showing that coast line and the area of Matsula.

Google Map showing the area of Matsalu and its proximity to the coast line of Estonia.

The eagles eat carrion (dead animals). Is it possible that a disease was transmitted to the nest? Was it Avian Flu? or was the cause rodenticide? It will be good to have the speculation stopped and have factual evidence – then the wildlife authorities can begin to figure out how to make sure this doesn’t happen again (if they can). The bodies of the babies will be removed on the 14th of May for an autopsy if the eagles allow them to take them. Meanwhile, Eerik is at the nest looking down at his baby, EE1, now covered by straw.

Wildlife employees in Estonia have just released this statement: “If we manage to collect the dead chicks (hope the parents let us do that), the tests will be done in Estonian University of Life Sciences or sent abroad if needed. We’ve talked with Dr. Madis Leivits about it. We’ll post the findings on the forum, if we get new information. The camera will stay online and I really hope that next year we can follow this nest again.” Thank you ‘T’ for sending this to me!

It is hard to transition from what is happening in Estonia to the rest of Bird World. I hope that the issues at this beautiful nest in Estonia are resolved and that Eve and Eerik return to raise another family next year.

When the anxiety and tensions on one nest get too high and I need a break, I head to a nest that appears stable – at that moment. As we all know, everything can change in an instant. One of those ‘safe’ nests is the Manton Bay Osprey nest at Rutland, home of Maya and Blue 33 (11). Just look at those Two Bobs! Blue 33 (11) has been busy bringing in fish today. It was a whopper at 11:47. Maya is busy filling the two up before the rains come. Look at how strong their necks are! Oh, I love this Osprey nest and those baby blues of the little ones. They will turn an amber or yellow-orange shortly and when they are adults, their eyes will be a piercing bright yellow like their dad and mum. Oh, those little dinosaurs are adorable.

Birds are often better at telling what the weather will be than our local forecaster. Maya fed the babies as much as they could hold before the skies opened in the late afternoon. Look at how she is hunkered down so the Bobs are warm and dry. Their down is of no protection to them.

By 18:22 it is dry enough that Maya can safely stop her brooding and feed those spunky osplets! There is not any nonsense. Maya and Blue 33 (11) are amazing parents who keep those kiddos full. The Bobs know that there is plenty of fish – no food insecurities here. How refreshing. I could watch these two little ones all day. You can see how they stand erect for Maya and how their crops are just beginning to get full.

There is no shortage of pigeons for the three male eyases of Annie and Grinnell. The parents had a banquet for them after the banding yesterday. If you look carefully you can see the red band on the right leg of the chick at bottom left. Each eyas has two bands – an aluminum one and a coloured one.

One of the questions that someone asked yesterday during the Q & A was about the ‘ps’ all over the walls. The answer was this: if something happened to Annie and Grinnell a pair of falcons checking out this box would know that the territory was a good one, full of prey, because of all the ps. Isn’t that interesting? One of the other questions was about parasites. Peregrine falcons evolved to lay their eggs and raise their eyases in a scrape box. This helps avoid mites and parasites that happen on stick nests.

Big Red and Arthur’s little ones are also full of spunk and vinegar! K3 got its head caught under the wing of one of the sibs and it stood up like a big prize fighter giving that sib the what for. Look at that crop! That little one is really telling that other one. It is not the first time this little one has been ready to take one of the older ones on. This nest is going to get really interesting.

Samson brought Legacy a nice fish. Legacy started squealing and mantling before he was even in sight – that was 4:50:28 if you are watching the streaming cam. There she is mantling and Samson is just arriving.

I love Samson’s skinny legs! It looks like he is wearing tights. He is getting out of there quick – saving those talons for sure!

Legacy will not stop mantling the fish til Samson is not a threat.

Legacy is really learning how to keep her fish for herself. Great lessons by Samson and Gabby.

Legacy made quick work of that fish!

Oh, Legacy, you are gorgeous. We are so lucky you returned to the nest and have stayed around longer so we can enjoy seeing you learn and grow more confident.

I have done a quick run through of the other nests and everything seems to be going smoothly. There will be hatch watch for some of the Osprey nests in the UK this weekend. Iris has two eggs in the nest but she appears to not be taking their presence seriously. She left at 13:55 and at 20:25 she had not returned. I am glad to see that Iris is taking care of herself. No doubt she is enjoying the nice day and has caught herself several good fish.

Tiny Tot, who is no longer tiny, has been eating a lot of fish today. #2 sibling got the first fish of the morning. Tiny Tot showed the remarkable patience she has gained. She waited knowing full well that Diane would let #2 work on the fish for so long and then she would take it and they would enjoy the rest of it together. That has repeated itself throughout the day.

And can you see them with all the things in the nest? The two at the Dahlgren Osprey Nest are doing well. The first hatch has really taken off in terms of size. I bet everyone is sitting around saying that ‘it’ is going to be a ‘big girl’. Time will tell. It is too late for the third egg to hatch and it will be absorbed into the nest. No worries. Harriet keeps the two chicks warm and well fed. Jack is an excellent provider. Two nice healthy chicks is great!

Tomorrow I want to check on some of the Red-tail hawk nests in New York City – yes, right in the heart of the city. In fact, it was one of these nests that keened my interest on urban hawks – the one on the ledge of New York City University. There should also be some news on the retrieval attempt of EE1 and EE2 for their post-mortems. Right now, Eerik is on the left hand branch of the nest tree in Estonia. He has moved the bodies of the babies and him and Eve have eaten off the prey in the nest. They need to consume it so that intruders do not come. So fingers crossed!

Thank you for joining me. Take care. See you soon!

Thank you to the following for their streaming cams where I get my screen shots: The Eagle Club of Estonia, the Dahlgren Osprey Cam, Cornell Bird Lab, UC Falcon Cam, NE Florida Bald Eagle Cam, LRWT Rutland Osprey Project, Achieva Credit Union, and the Montana Osprey Project.

Wednesday up and downs in Bird World

Wednesday started off with the sudden death of EE2 at the White-tail Eagle Nest in Estonia. The little one was up, bright and cheery at 4:04 and then gone. There has been a lot of speculation. A heat wave went through the area with temperatures doing from 1 to 26 degrees C in a day. Those dramatic changes can put stress on wildlife. Eve and Eerik had plenty of food and the eaglets were, as far as I could tell, growing and filling up the egg cup. Yes, there could have been a toxin and for sure, everyone has been watching EE1 closely. It could also have been a tragic accident of some sort. We won’t know because the body of the little one will not be taken – so I am going to stop speculating myself and hope that EE1 thrives and fledges. EE1 was fed five times between 13:22 and 19:14 and appears healthy.

The three eyases of Annie And Grinnell were banded today. The chick on the left has been banded. The one whose wings are back and looks totally frightened is just getting ready to be banded. It looks a little frightened.

The eyases receive two bands. One is metal and has a 9 digit aluminum band. There is a second coloured band with four digits that is unique to Peregrine Falcons in the SF Bay region. No gloves are used in the banding process so that the banders can handle the birds safely. Banding helps with studies in survival and movement. It does not hurt the birds.

The three are all males.

The banding was an on line event with two people from the centre answering questions as they discussed the process. You can see the whole procedure here and listen to the questions being answered:

Can you tell which of the two ospreys on the nest is Tiny Tot?

Oh, my, that bird has grown! Someone looking over my shoulder said, ‘The one with the beard!’ Well, if those feathers were smoothed down, it sure would be hard to pick Tiny out because Tiny isn’t Tiny anymore. Tiny Tot needs to grow some more feathers for flight. Look at sibling #2 at the back. See the length of the wing tip feathers? And the next layer? It would be really good if Tiny got all that feather growth before setting out on its own. Hopefully Tiny will hang around the nest, as #2 has done, to get some more flight training and to let the parents, Jack and Diane, feed it.

Sibling #2 is on the perch post eating a fish and Tiny Tot has just acquired the 3:47 pm fish delivery. No doubt s/he is going to be really full! Look at the size of that fish!

Big Red and Arthur’s little ones are doing fine. K3 really is a corker. Poor thing. I watched it yesterday when it got behind siblings 1 and 2 and wasn’t getting any bites. Oh, that little one – not scared at all – pecked at that big sib. I was rolling with laughter. It was like a comedy routine. Early this morning, for the first feeding, K3 was up front. It takes a few days to figure out the strategy but those little ones have spunk and drive. No one needs to worry about getting fed on Big Red’s nest!

This nest has a lot of different food items for the Ks. Believe it or not, at this age, they are already imprinting those birds and mammals so that when they are older, they will know that it is OK to eat them. The eyases have to pack a lot of knowledge into a few short months.

Big Red goes off for a break. It is a nice warm day. Arthur delivers a grey squirrel and then returns with a Starling! Everything is fine on the nest of the Ks.

I did a quick check on the little osplets on the Savannah nest. They had nice crops – both of them – around 13:30 – left over from the earlier feeding.

The second sibling is getting a nice feed from mom. That is nice to see. There remains some rivalry that can be unpleasant at times.

The image below was taken yesterday, 11 May. It is Iris and for those of you who do not know, Iris got her name from the specks in her right eye. You can see them clearly below. So, even without any band, everyone knows that this is Iris!

Iris did not incubate the eggs in the nest last night nor did she spend the night on the perch. In fact, she left her nest in good time to go and get herself a good fish dinner and did not return until this morning.

Iris had a nice fish breakfast before heading over to the nest nearby.

Iris returned to the nest at 6:42. She had been away at least twelve hours. Iris is taking care of herself.

As the graduate student at the UC Falcon Cam said today when asked if Annie and Grinnell would remember the banding every year. He said, “Birds have memories.” There is no doubt in my mind that Iris is chained to her hormones during the breeding season. She migrates to Montana and begins working on her nest. She lays eggs regardless or not of mating. She has some urge to incubate them BUT no doubt, over the past four or five years she remembers what has happened. Perhaps she remembers and isn’t caring so much this year? I cannot answer that. Perhaps she knows that both of those eggs are not fertile. ——- I just want to continue to enjoy seeing her. She is an amazing Osprey.

Legacy at the NE Florida Bald Eagle Cam in Jacksonville was waiting for a food drop this morning.

Isn’t ‘he’ gorgeous? He, you ask. The reasoning is in part because of the ‘flat’ head but more important the mandible – the yellow portion of the beak/mouth does not extend to 90% of the back of the eye. I hope that makes sense. Instead, the bright yellow area below stops almost level with the front of the eye. Take your finger to see – and then notice how much longer it would be if it extended to the back of the eye. Are you a boy, Legacy? Of course, there is never 100% certainty unless a DNA test is taken or you see Legacy lay an egg but, it is a good indicator.

Samson came in with a fish delivery at 2:11:32 and he got out of Legacy’s way fast!

Wow. By 2:31 – twenty minutes later – there is hardly anything left of that fish! Good work, Legacy. You are a pro at self-feeding.

I want to close with a look at a power couple in the Osprey world: Maya and Blue 33 (11). Blue 33 (11) has brought a fish to Maya so she can feed the two Bobs.

There was mention about Blue 33 (11) and this nest at Mantou Bay at Rutland. Tiger Mozone said something very ensightful: “Blue 33 (11) not only wanted the nest but Maya, too.” Right on. As Tiger pointed out, Maya had first been paired with 32 (05) who was shot. Then she was with 5R (04) but he didn’t return in 2014. In 2014, Maya paired with 28 (10) who Tiger calls Wonky Wing – Blue 33 (11) made short shift of him evicting him from the nest. Maya and Blue 33 (11) did not breed that year but they started in 2015 and have since had twenty-one chicks!!!!!!!! Blue 33 (11) knew a good female as well as a good nest.

Look at those healthy Bobs. I cannot think of a better way to end the day than seeing these two strong future ospreys.

Thank you for joining me today. It is nice to have you here with me.

Thanks to the following for their streaming cams where I get my screen shots: LRWT, NEFlorida Eagle cam and the AEF, Montana Osprey Project, Cornell Bird Lab, Skidaway Audubon, Achieva Credit Union, UC Falcons, and the Eagle Club of Estonia.

You can always count on Arthur

Big Red, the grand dame of the Red Tail Hawks, whose nest is on the Fernow Light Stand on the Cornell Campus at Ithaca, New York lost her long time mate, Ezra, in March 2017. She had many suitors who were put through the rigours to find out if they were good providers and devoted so that their chicks would grow and thrive. Big Red chose Arthur. All of the humans thought that Big Red had ‘lost her mind’ in selecting such a young male to be her companion.

Big Red hatched somewhere near Brooktondale, New York, in 2003. She received her leg band on 7 October 2003 in Brooktondale. I have yet to find out the name of the bander. In 2017, Big Red was fourteen years old. Arthur, who had been born in an adjacent territory and who was known by some as ‘Wink’, was born in 2016. When he arrived checking on the Fernow Nest, he was only a year old and did not have his red tail feathers. He caught Big Red’s attention and by the fall they had totally bonded and were fixing up the nest for the coming breeding season in 2018. Big Red could not have chosen a better mate!

In the image below, Arthur has delivered prey to the nest so that Big Red can go and eat and he can take over the incubation duties of their three eggs. This was last evening.

13 April 2021

While Ezra was known as the squirrelinator, Arthur is known for capturing more chipmunks. Hence, he is often called the chippyinator. However, Arthur is like a jet plane when it comes to hunting. Rumour has it that he has flown onto someone’s porch to get a squirrel! So maybe Arthur is both squirrelinator and chippyinator!

In the image below, Arthur is delivering a Robin to Big Red as she incubates the eggs in one of Ithaca’s snowstorms. It was the day she laid her third egg of the 2021 season.

1 April 2021

The images below are from last year. The Js have hatched. How can you tell? Look at all the prey around the nest. Arthur will bring in so much that Big Red can line the nest bowl with fur! I am serious. No one on this nest is going hungry.

6 May 2020

Arthur has found a nest of goslings and thought Big Red might like one for dinner.

6 May 2020

Unlike other raptors, hawks will only eat road kill if there is a food shortage. On occasion, Arthur has brought in live prey to the nest. Some believe this is a teaching lesson for the nestlings.

Of course, people that watch hawk nests have a strange habit of trying to identify prey or making up names such as ‘Dunkin’ Chipmunks’ or ‘Chocolate Chippie Cookies with a Squirrel Glaze’. All kidding aside, researchers watch what prey is brought into the nest and the amounts. A typical Red-Tail hawk diet consists of 68% mammal, 17.5% other birds, 7% reptiles/amphibians/snakes and 3.2% invertebrates. Those amounts come from research by Johnsgard in 1990 but those observing the Cornell nest say that they still apply, for the most part. In 2020 with the pandemic, there was a proliferation of chipmunks. It is believed that the lack of cars killing chipmunks on the road helped with this along with just not having people around.

In April of 2018, Ferris Akel caught Arthur eating a skunk:

The same researchers have tested prey for its caloric/protein/fat/cholestrol components. Did you know that 3.6 ounces of raw pigeon has 294 calories compared to the same amount of squirrel which has only 120 calories?

From the prey delivery reports, it was established that nearly .7 more prey was delivered in 2020 compared to 2016, 2018 and 2019. That is an enormous difference. None of it was wasted, everything was eaten. The factor that changed – the pandemic. Arthur was able to freely hunt all over the campus. There were hardly any people or cars to contend with. The more food the healthier the chicks are. Even feather growth can indicate when a bird was hungry. Also, the longer the eyasses stay on the nest the better their survival rates in the wild.

Big Red laid three eggs for the 2021 season. The first was on 26 March followed by 29 March and 1 April. Red-tail hawks generally incubate their eggs for 28-35 days. Big Red’s incubation periods have ranged from 38 to 41 days. Still, by the 28th of April all eyes will be on that nest! The Ks are coming. Yippeee.

Why do I mention all of this? There is no doubt that Arthur is a devoted mate. When it is time to fix up the nest, work on the nest bowl, incubate the eggs, provide prey for Big Red and then for her and the eyasses, Arthur is right there! You know the other ones that I wish were like Arthur if you read my blog. I will leave it at that. Can you hear me growling at them?

You can watch the life streaming of this nest here:

In other news, the three chicks on the Achieva Osprey nest are waiting for food. Yesterday Diane, the female, delivered many fish and Tiny Tot finally got a good feed very late in the day. As I write this it is 3pm and no food has come to the nest. The mother is not calling for food and the male touched down for only a few minutes around noon. There is something wrong at this nest today. It is extremely hot there, over 30 near the nest. Hopefully if it is the heat food will come in. Tiny was well fed but he needs to eat less more often still. The fish also provides the hydration. I wish the wildlife laws allowed for the care in these situations.

Louis is still waiting for Aila to arrive at the Loch Arkaig nest and Iris continues to bring in twigs and branches for her nest at Hellsgate. One of the members of the FB group had a really good take on Iris. Instead of bemoaning the fact that she will not be able to raise chicks if Louis repeats his behaviour, we should be happy that she can enjoy her summer vacation without the burden of care for little ones and the toll it takes on one’s body. What a positive way of looking at this. Maybe I should be thanking you Louis for just being Louis. Iris has fledged at least 30-40 chicks or more – she does deserve a break to stay healthy.

You can watch Iris at the Hellsgate Osprey Nest cam:

And you can watch Louis wait for the arrival of Aila here:

Thank you so much for joining me today. I wish the news was better on the Achieva Nest. We can hope that it is only the heat. Still the little one needs to eat more often. Take care and keep watching the nests!

Thank you to the following for their streaming cams where I take my screen shots: Woodland Trust and People Play Lottery, Cornell Bird Lab – Hellsgate Osprey and Red-Tail Hawk, Ferris Akel, and Achieva Credit Union.