Tag Archives: J3

Monday morning in Bird World

25 July 2022

Oh, good morning everyone! Still some fledging going on in the UK, osplets getting their ‘legs’ in the US, another video of Little Bit…it is starting off as a good week. Fingers and toes crossed.

At the Sea Eagles nest in the old Ironbark Tree, Lady seems to have gotten into a pattern of feeding SE 29 and 30 every hour. Lady’s job at this stage of the eaglet’s development is to brood and feed the chicks. Dad is in charge of hunting and guarding the nest. The chicks will grow quickly. When they are 3-4 weeks old, Lady will stop brooding them at night and sleep perched on the tree. Fledging takes place between 75-85 days, normally.

So,, we must enjoy every moment of these two little white snow balls. What can we expect in weeks 2 and 3? You will continue to notice how their beaks are growing longer. It is hard to imagine but they will start to crawl out of the nest cup during week 2. You will also notice they have started to squirt their ‘ps’ over the side of the nest. No potty training for these two – it is instinctual. By week 3 they will be double their size at hatch and they will become interested in things around them. They will be eating bigger flakes of fish and pieces of prey and, of course, they will have mastered getting those bites into their beak from Lady much better than in the early days.

It is the most beautiful golden morning in Finland at the Janakkalan Osprey nest. The two chicks are sound asleep.

It is an equally beautiful morning in Mlade Buky, The Czech Republic as the sun comes over the distant hills. You can see the four storklets on the natal nest in the foreground. Now look carefully at the top image. In the middle ground, there is the finished ‘home’ that Bukacek was building for him and Betty. The storklets can flap all they want — and they are beginning to work those wings. It would be a little crowded there with six on that nest!

Sorry. It is so dark there but look carefully and you will see the adults in their own private space!

All four storklets at the nest of Karl II and Kaia in the Karula National Forest in Estonia are doing splendid. Like the White Storks above, these four are starting to work their wings as well.

There were only 2 feedings for the storklets on 24 July. From the discussion forum, it appears that the fish baskets need filling or some other bird species is eating them. It also appears that there is not enough fish in the natural sources… let us all hope that the baskets are filled and Karl II and Kaia find all that food and eat themselves and feed their four very large storklets.

The three fledglings of Ivo and Iiris are doing well although some of their take offs and landings need a little adjustment. Ivo is delivering really nice size fish to the nest and each waits their turn for another delivery if they missed an earlier one. The nest is located in Southern Estonia near Tartumaa. Nearby is a fish farm as well as a river and some ponds. It would appear from the deliveries that there is plenty of fish for this family of 5.

Ivo has enjoyed the head of this fish. He has a very nice crop. Thanks, Dad.

Another video of the area of the Notre-Dame Eagles – and a most welcome one. It shows where they are and where you can ‘view’ them without doing harm. The individual filming will point the camera to the trees. Squint – look hard. There is at least one fledgling on a branch. They say it is ND17! I sure hope so. It was great to see the three yesterday for the simple reason that 17 is eating somewhere…and flying around watching and learning from the parents …or there would not have been three. So very grateful. Thank you!

Carol Mandis-Beatle posted some images of the three ND eaglets on FB. I hope she does not mind if I share one of them. They were so cute..and they grow so fast!

Speaking of ‘baby pictures’. How many of you remember J3? He falls right up there with L4 for me — cutie pies – Big Red and Arthur’s kids at Cornell. Gosh, I would love to know the dispersal area of their eyases and would especially like to know how they are. You get attached and poof – gone.

J2 and J3 (J1 will be killed flying into the glass at the Weil Building) were best mates. They soared in the sky protecting their sister J1 when she was bathing in a puddle. They also soared together until one morning…J3 got into a thermal, soared high and was gone- out of sight forever. Then J2.

The pressure on BC Hydro to do something to help the Bald Eagles continues – and I am so glad that it is not losing traction. Two articles – one in the Times Colonist and the other in the Vancouver Sun.

https://vancouversun.com/news/local-news/gabriola-island-bald-eagle-dies-electrocution?utm_medium=Social&utm_source=Facebook&fbclid=IwAR1S65oxSzU2cC4AkKDINd2pkIy-C9MFsQpi-jcgTd_bD0XhdcLSlwdksk4#Echobox=1658447885

https://www.timescolonist.com/local-news/eaglet-from-blended-raptor-family-dies-from-electrocution-5618079?fbclid=IwAR1rliqQwaRn6rVhdPyYF0mpEMqg8fRzL5Dr0K1PNQpqYbmmqzIOCbsiyQk

Malala has been coming and going from the nest. To check out her images please go to GROWLS FB page. You do not have to be a member of FB or their group to see the images.

‘H’ caught the trio at the Boathouse ‘Waddling’ this morning and made a YouTube clip. It is short and ever so cute…all are standing. Thank you ‘H’. That nest is getting rather small…

https://youtube.com/clip/UgkxtoqfzEvKNx_o0JQzGRwo4EMvhHpGn5WQ

In Poole Harbour, there was a moment when the nest was empty. Both chicks of CJ7 and Blue 022 have fledged!!!!!!!! 5H2 fledged this morning. Celebration Time. Like all others, they will, of course, chase the parents back and forth for food for a bit building up their flying skills. Hopefully we will have a few more weeks with the family before CJ7 heads south for her winter break.

5H2 has returned to claim a fish on the nest. What a lovely sight she is. Always good to see them return the first few times! Congratulations to everyone at Poole Harbour.

Skipping way across the pond, the sun made the nest golden at Osoyoos this morning. The chicks were beautiful! Olsen brought in a small fish at 07:16, the first of the day unless I missed something quite a bit earlier.

Alden has found a new loafing spot. He may have to change often if those two fledglings – and Grinnell, Jr in particular – continue to find him. It seems that all the nooks and corners of the Campanile at Berkeley are being visited by Lindsay and Grinnell Jr looking for Mum or Dad or both! Not much peace and quiet…it is beautiful, isn’t it?

Can you spot Alden?

Thank you so much for joining me this morning. It is hazy here this morning The garden birds have been awake for ever so long. The Crows have been at the bird bath cawing their heads off for more peanuts. They was them…and leave the shells in the water for their human servants to clean up! It is so funny to watch. I will try and catch some images for you today. Take care everyone. I hope that your start to the week is a good one. Hoping that we get another update on Victor’s progress soon!!!!

Thank you to the following for their FB posts, videos, and streaming cams where I took my screen captures: Cal Falcons, Osoyoos Ospreys, Poole Harbour Ospreys, GROWLS, Cornell Bird Lab RTH Cam, ND-LEEF, Eagle Club of Estonia and Looduskalender, Mlade Buky, Finnish Osprey Foundation, and Sydney Sea-eagles@Birdlife Australia Discovery Centre, Sydney Olympic Park.

Why are female Red-tail Hawks almost always 30% larger than the males?

It is called Reverse Sex-size diamorphism. There are several theories as to why this happens with Red-Tail Hawks.

The first is that the females had to be larger to protect themselves from the feisty males.

The second is that the females selected smaller males to be their mates because the size difference allows each of them to hunt different prey and reduce any competition for food between the pair. Raptors that hunt birds are generally smaller and faster with the female specializing on larger prey. At the beginning of the nesting season, the female becomes an active hunter and again when the nestlings are larger. Generally the adults tend to partition the prey resources in their territory.

Another theory is that the females need to be larger because they must accumulate reserves in order to produce eggs. When they are incubating eggs and brooding young, they rely on the male to feed the family. Red-tail hawks are usually born in April when the prey are sluggish and just coming out of hibernation. Small males can make quick turns. In the case of the Red-tails on the Cornell Campus, Arthur W, the male, is known as the ‘stealth bullet.’ He is quick, fast, focused, and quiet when he hunts. Big Red’s former mate, Ezra, was like Arthur W a great hunter but he was also about 30% smaller than Big Red as is Arthur.

Ezra has his wings spread and his legs tucked tight. If you look closely you will see that he is delivering two items to Big Red. The first is a snake and the second is a flower!
It is very difficult to get Big Red and Arthur to stand up straight at the same time. They certainly do not listen to requests from humans!This is the closest I have come to finding an image that might be able to show you the difference in their size. Big Red is on the left and has her head leaning back preening and she is a little more slumped than Arthur who is on the right.

In terms of the nestlings, the only way to positively known the gender of the bird is through either a DNA sample or you see them laying an egg when they are older. Everyone likes to guess the sex of the chicks growing in the nest cup. Using reverse sex-size diamorphism, we speculation whois a female by their overall size as they grow in the nest and the size of their feet. But again, no one can be absolutely sure. In the past one of the small nestlings was always believed to be a male. This particular bird injured its wing and, as a result, had to be taken to a vet. The bird’s DNA was tested and, to the surprise of many, it was determined to be a female. So not every small Red-tail Hawk is a male!

In terms of the relative size of each J, J1 is the largest of the three. Early in its development, everyone noticed the large size of its feet. Now as a juvenile, J1 remains the largest of the three siblings. But there is something else about J1 that I personally find fascinating. J1 is very much interested in nest maintenance. She can be seen, even today, mimicking Big Red in attempts to vent the nest bowl. She rearranges the nest twigs and on the second day after she fledged, she brought a branch to the top of the Rice patio. There seems to be 100% agreement that J1 is going to be a good mama like her mother, Big Red.

J3 in the front and J1 behind watching J2 fledge. Look at the difference in the size of their legs as a starting point.

J2 on the other hand is also a large bird, not as large as J1 but larger than J3. J2 was actually the first egg to be laid but the second to hatch and is, therefore, actually the oldest. His fledge was more like a fludge when he climbed up on the light box and then slipped but his flight was still remarkable. J2 has continued to be a very, very strong flyer already interested in hunting. The shape of “his” head – you will notice that I continue to use the term “his” – is also different than that of J1. He has an intense focus and besides bugs and insects he has already been interested in small birds in the territory. To my knowledge he has not caught one. He is also very aggressive. A few of us believe he is truly a male and will be a great hunter like his dad, Arthur W.

J3 eating his first prey drop after fledging.

J3 is the problem child that everyone loves. . J3 was born four days after the other two and it was also the last egg to be laid. Taken together, J3 is actually a week younger than its siblings. That is a lot in the life of a Red-Tail Hawk chick. It may also account for the fact that Arthur W brings food to the nest tower in an apparent effort to feed J3 away from the two larger siblings. Let me try to explain what has been happening. Normally the juveniles are spread out being individuals. This trio is quite different according to the people who have monitored all of the broods on camera (since 2012). It is because they tend to congregate together. To hang out. If one is on the Rice patio, all three might be there.

All three on what is called the Rice patio. Arthur W often makes food drops here but it is also a safe and flat site where they can sleep in the sun or practice their skills.

They might all be on one of the towers including the nest tower. Still, on occasion, they go their separate ways.

J1 in one of the oak trees near the Fernow Building looking at a squirrel.

A prey drop is just that – one of the parents dropping lunch. The juveniles will, unless they have recently eaten, fight for the food with the most aggressive mantling the prey. Unless the prey item is too large for the chick to eat all at once, sharing doesn’t seem to happen. So, because of J3s size and a seemingly lack of aggressiveness in comparison to J2, J3 is somewhat at a disadvantage. This is the reason that I believe Arthur W still supplies food on the nest to the little guy.

Arthur has been dropping lunch off to J3 for several days now. This was around 3pm. He seems to be looking for J3 who arrives almost immediately.
J3 mantling the prey that Arthur W dropped on the nest. Remember mantling is a way of protecting the food item so that no one else can steal it.
J3 finishing up his afternoon snack.

For now, the gender of the three juveniles is sheer speculation. There are no banding practices and no GPS monitors on the Js. In other words, no identification. It is only when one of the juveniles might find its way to the vet and be both recognized and tested that the sex would be determined.

Tomorrow we are going to talk about the importance of preening.

Everything is fine in the world of the Js

Little J3 spent the night of June 14 on Rice, apparently alone. He flew back to the nest hoping to have breakfast at 7:46 am on June 15. Arthur quickly awarded him with a squirrel which he mantled with both feet. The little guy was really hungry and no one was there to steal his food! Great hawk reflexes though. A couple of hours later Arthur returned with a chippie. Full to the brim J3 spent the day lounging on the grating or the natal nest, sometimes sleeping on his favourite leaves. At sunset, he flew back to the Rice building where he spent the night. He was just waking up this morning, stretching, and sleepy.

J3 on the nest tower thinking about flying over to the Rice building to spend the night.
J3 getting into the line backer position to take off. He is really getting his flying skills down.
J3 getting in position to fly off of Rice to head back to the nest where he will spend his day eating the food drops from Arthur. He will fly out and over to Rice to spend his second night there.
J3 is figuring out how to tuck up his landing gear!
Arthur delivering breakfast to J3 over on the nest tower. A nice reward for all the effort of his fledging the previous day.
This is an excellent example of mantling prey – protecting it so no one else can get it.
The rear view of J3, now relaxing with no sibs about, eating his lunch chippie.

J1 also spent a bit of time on the nest rearranging the oak leaves that Big Red had brought in but most of her day was spent on top of Rice where her and J2 received prey drops from Big Red.

Around 5pm she made her way to the trees in front of the Fernow Building. At one point it looked like she wanted to get to the nest and she began breaking branches to aid her flight. Very intelligent. She then changed her mind. When I left her last night at 7pm she was in the Oak tree preening and this morning she was with a squirrel in one of the Oak trees in front of Fernow.

J2 is harder to keep up with as he is our “stealth bullet baby”. J2 has amazing flying abilities. It is like he skipped the learning stage and went to advanced intermediate. Yesterday he was aggravating a bunch of robins near the old coop buildings on the Cornell campus.

It is now the morning of June 16 and all is well with the J family. They are fed by the extraordinary hunting skills of their father, Arthur, aged 4. Their mother, Big Red, aged 17, keeps a close eye on the chicks. I wish I was on the ground chasing them about in Ithaca but, sadly, not. Postings about their development and happenings will appear daily albeit they could be short.

In the meantime preparations are ongoing, around the world, for the very first World Albatross Day on June 19. Stay tuned for information on that event as well as the challenges that both the Red Tail Hawks and Albatross face living with humans and machines.

June 14. Double Fledge. J3 goes first at 8:46, 46 days old. J1 goes two hours later, 50 days old.

Wow. What a busy morning. The oak leaf and thorn plus withholding food certainly motivated the last two chicks out of the nest. J2 came over for a visit expecting to get some food but Big Red and Arthur must have had a confab last evening and decided it was thorns and oak leaves, no food. It is incredible how food can be used to motivate behaviour.

At 8:46 nest time, the hungry and light Little J3 decided it was time to go. After bouncing around on the nest, he slipped over to the front railing where everyone has expected him to fledge. In fact, Little J3 has spent most of the past several weeks looking out to the world from that very spot. He could often be seeing jumping around on the nest cup like it was his own personal trampoline but always stopping to look out to the world through the railing.

J3 after running across the nest and flapping stops to watch J1 flapping.

Over the course of the last few months, from the time of incubation, hatching, and changing, preparing to fledge, J3 won the hearts of many. For one thing, he is so tiny compared to J1 and J2. Speculation has always been that “he” is a “he” because of his size. Only a couple of us think that “he” is actually a very small female hawk. That is because “it” has very large feet in proportion to its size. Additionally, J2 always picked on J3 including sleeping on prey to keep it from him. As the chicks matured, Little J3 or Little Bit as he was often called was protected and cared for by his/her big sister, J1. Even this morning before J1 fledged, she was taking care of the nest bowl completely oblivious to the rest of the world. But because of her attachment to J3, it is believed she finally took the step and just joined her sibs (see later in post).

J2 was sitting on the railing and J1 was pleasantly resting in the nest cup as J3 made his way over to his favourite spot.

Look carefully above the road. J3 is winging it across the street. BOGs on the ground said it sounded like a little helicopter motor as opposed to when J2 (sitting on rail) fledged yesterday which was like a stealth rocket, totally silent.
J3 has his white pantaloon legs down from the previous shot and you can see that if this were video, he would be flapping his wings. When he gets more experienced he will tuck those legs up tight so there is no drag when he flies. Imagine if you will the problems that airplanes have if their landing gear gets stuck in the down position. It is the same for hawks.

The BOGs (Birders on the Ground) thought that J3 had landed a great distance from the nest because he was so light and going at such a clip. There was even speculation that he had flown all the way to a nearby lake. Even Big Red was circling around to find her chick.

In the end, J3 landed in one of the trees in front of the Fernow Building close to where J1 had fledged yesterday. After looking for some time, the BOGs found him. His descent was not as smooth as his take off. What a little guy! His great long life journey, we hope, begins.

J3 landing, rather awkwardly, on a tree near the Fernow Building. As he gains confidence and experience, these awkward moments will stop. J3 is, I am told by those who have trained and watched hawks for years, a typical fledgling, struggling to figure it out. But because of J2’s stellar performance the day before, us first timers thought his fledge would be like J2s.

While J3 was settling in the tree away from the eyes of the BOGs hunting him, J2 is on top of the Brueckner Building. J1 is on the nest cup rearranging the oak leaves that Big Red brought in the night before. At 10:36, after much back and forth, J3 gives up and reluctantly fledges between the rails at the front of the nest facing her siblings (J2 is on Bruckner and J3 is in the tree in front of her across the street).

J1 hems and haws for several minutes before taking flight. J1 will be a fantastic mom one day – she had a great teacher, Big Red.
And J1 is off!
J1 has spread her wings and she has cleared the light box. A well intended, albeit reluctant, fledge. Not a fludge.
Last night Big Red brought in oak leaves and thorn branches to the nest. Laura Culley, a falconer and owner of Mariah, a red tail hawk aged 28, speculates that the chicks will use the visual clues to find the oak trees across the road when they fledge.

J1 had a slow flight across the street but remembering those oak leaves, she landed beautifully in the oak trees just as Big Red suggested! Isn’t she gorgeous? Like J2, she has beautiful blue eyes which will get darker in time. Ironically, her little brother (sister?), J3, already has dark eyes. It was a good way to tell them apart even if he was smaller because sometimes it got confusing.

Big Red tries to lure the trio with food at noon. She stands on top of a wooden pole with a chipmunk and is tempting them but no takers so far.

Arthur brought a chipmunk to the patio and it was picked up by Big Red. She took it to a tall post where the chicks could see her. She waited to see if any of them would come to the post for their food. None did.

When none of the chicks came to the post to retrieve their lunch, Big Red eats some of the chipmunk taking the rest to J2 on top of the Bruckner Building. It was the first prey drop of the season to the chicks. J2 was delighted. He even carried the chippie around for awhile and mantled it when Big Red arrived with an oak branch. Some think that is a clue for him to spend the night on top of the Bruckner Building where it is safe.

J2 suns himself on top of the Bruckner Building after he eats his lunch. Big Red often can be seen on the Bradfield Ledge in this same position.

As J2 suns himself after his lunch, J1 flies to the top of the Rice Building, a site that would have been very familiar from the nest. Meanwhile, J3 has decided to come down from the tree and get itself in some mischief around the road. Thanks to the BOGs on the groud and especially Karel and BOGette, he did not get run over by a truck and eventually made his way to the roof of one of the buildings. From here he can work his way to a point where he should be able to see and fly to his sister, J1. He first has to manage his way up onto a slate roof and then over to the metal corners before flying over to the Rice Building. It is definitely not easy walking on slate with talons!

J3 discovers it is difficult to hawk walk up roofing slates. He eventually gets to the metal corner and makes his way to the ridge where he sees his beloved sister, J1, and flies over to join her hoping to get some supper from Arthur or Big Red.
J3 joins J1 on the top of the Rice buildings air conditioning unit.
J1 is waiting alone for his prey drop from Big Red or Arthur.

Wow. What a day. And it easily came with tears at the end of it. We leave J3 on top of the air conditioning unit waiting for food from mom or dad. It is the first day for all three of the chicks to be out of the nest.

But for Big Red and Arthur it is a day to be proud. Big Red has successfully fledged all of her babies since the time the cameras were installed in 2012. They know that she also had at least two broods pre-camera and probably more before. In all she has fledged 24 chicks on camera and at least another six off camera, 30 in all.

In the coming weeks Big Red and Arthur will help the chicks to hone their flying skills and will teach them how to hunt for their future survival. I will bring all of you updates as they become available.