Tuesday in Bird World

28 May 2024

Good Morning All,

I apologise for being late with the Monday posting.

At Lake Murray, Mum came down from her perch to sleep with her only surviving chick. Did she hear the GHO. Oh, if this chick can only put on some good weight and if the beams from the strobes were the same as they were Saturday night, Middle might stand a chance. (Note: Little was taken the first night and it appears that Big was taken Sunday night.)

Baby was safe this morning. Oh, please, let this nest keep one!

As we recover from the second GHO predation at Lake Murray, we must – where possible – advise the osprey and eagle nests of the success of the Cowlitz PUD experiment with the metal fish grids. I keep talking about the economical cost. Two fish grids with a welded rod attached to opposite sides of an Osprey platform. That is all you need! It works. A baffle at the base of the pole for raccoons would always sweeten the deal. If you know of a nest that suffers predation from other raptors, please advise them. You can feel free to copy this. They can contact Cowlitz PUD and they will happily tell them how they did it. We need to be proactive. No sense osprey parents working hard to fledge chicks only to fatten them up for owls and eagles who can find other meals.

‘B’ wrote with a very good question. I want to go through my files and put my ‘thinking cap’ on with ‘H’. It is not a topic that we have put into our data forms which are related to ’causes of death in ospreys’ and, specifically, siblicide, but it is worthy of some good notes and someone might be working on this research and I am unaware.

I wonder if there is a statistical difference in predation from osprey nests on platforms that humans have installed specifically for them, as opposed to predation from nests on natural sites that the ospreys have selected?  (That is, are the ospreys somehow better able to select a site from their own choices among natural sites than when they receive implicit encouragement to use a site selected by humans?  Have the ospreys built up some sort of knowledge from experience and historical patterns?)

I have not seen a difference.  In fact, if I think of overall predation by other raptors for the past three years, it ‘seems’ higher on natural nests in the UK and Finland than on platoforms in the US – the deaths there were mostly caused by weather related events or eggs that DNH.  The major predator in the UK and Europe appears to be the goshawk that lives in the nearby forests.  These nests are not in urban areas as a rule like many are in North America.

A goshawk came and took one of the osprey chicks at Llyn Clywedog right when Seren was feeding them in 2023!  

This is a comment by John Williams who cares for these ospreys: ‘This blog was never going to be easy to write, but yesterday at just before 16:30 a goshawk attacked the nest and took one of our young ospreys. It was blue 8B1, the attack was very quick and out of the blue. Both juveniles and Seren 5F was on the nest eating the fish when it happened. All distracted by the food their guard was down. You could see Seren 5F looking down to the ground as if she could see him down there.’ (I have placed a file at the end of this, the entire sad report by John Williams. I was glad to see him refer to the birds as ‘family’ because that is, of course, how ‘H’ and I feel about those we monitor).

A young goshawk took a female chick that had just been ringed at Kielder Forest in 2023 from the nest of Mr and Mrs UV. The couple are raising chicks again this season on that very nest.

Goshawks also attack ospreys in Latvia and in one nest in particular the male has failed to attract a new mate because of this. The rumour, this great sadness of chicks taken, must have spread. It was the nest of Theo and Vita.

The new fledgling, Sacha, named after Sacha Dench and The Flight of the Osprey, was attacked by a goshawk at Tweed Valley. To my knowledge, the ospreys are still breeding there.

CJ7 and Blue 022 are still using their nest in Poole Harbour despite the goshawk taking their fledgling H52 on 5 August 2022.

In the US, people will remember Steve and Rachel and the attacks on their nest. Rachel did not return from migration and Steve and his new mate, Callie, refuse to use the on-camera Hog Island nest despite restoring it and mating and having fish gifts.  “Last year, the rangers posted a photo of a very remote nest on Hog Island that they believe was used by Steve and Callie (H)”. ‘H’ also adds, “Dory and Skiff had Skipper that was predated by an owl in July 2023, but they did not change nest sites.  The primary nest that I know of is Hog Island.”

There was a spate of killings in Finland and I do wonder if some of the nests without families this year are those. I would have to do some more research and check for certain.  

Della and Warren have their first hatch of the 2024 season at Mispillion Harbour.

There is the first hatch at Clark PUD.

Olive and Oscar’s little chick at The Port of Ridgefield is peeking up – look under Mum’s fluffies -. So cute. This nest will be getting lots of predator protection for the 2025 nesting season.

Cutie Pie baby at Boulder County.

And another one at Cowlitz. Let us hope those fish grates hold this year against predating raptors in the area like they did last year.

There is a hatch at Moraine State Park on Monday.

Idris and Telyn are celebrating the hatch of their third chick. It is the 15th year for Ospreys at Dyfi in Wales.

There are now three for CJ7 and Blue 022. CJ7 is making valiant efforts to get that little one some fish.

Beautiful Dorcha is feeding her three chicks. Louis keeps that pantry full despite in climate weather.

Louis delivered six fish on Monday. SIX large fish!!

And there is the first hatch for Elen and Aran!

The three osplets at Smallwood State Park in Maryland are doing very well. Like Manton Bay they are right on the water and I hope it is full of fish!

The three at Maryland Western Shore for Old Town Home are getting a little rowdy, especially the two older ones. Arthur needs to being in many more large fish – if they are even available, maybe not. Or lots and lots of fish deliveries very close together! Fingers crossed for this little one.

Patchogue Nest is so full of garbage you can hardly see the chicks.

Radford University has two babies. Here is the link to their camera in Virginia.

There are four osplets at Field Farm.

At the Loch of the Lowes, Blue NCO lost her chance for a family when Laddie was killed/died. She had two suitors – a Pale Male and a Dark Male. Now Mrs G’s (Glaslyn matriarch did not return in 2023 from migration) granddaughter 7C1 has been battling with Blue NCO for the nest and she was on the nest with the Dark Male on Monday. It is not going to be nice this nest attempted take over.

Archie is working over time to keep his four babies fed!

The trio from the Denton Homes nest are doing very well at SOAR. As well as can be expected when they are being raised in care. Safe, well fed, nice vet care.

Across Europe firefighters work tirelessly to save the lives of storks – whether it is fishing line or floods or just abandonment.

Other ordinary individuals adopt storks and feed them. Makes my heart warm up!

Bety and Bukacek had only one hatch out of two eggs at Mlade Buky this season.

Iris and Finnegan hoping for a family.

The fledglings still visit the nest at the Venice Golf course in Florida while that nest that was loaded with fish at Fisherman’s Creek appears to have no more visitors.

It is very difficult to tell how much food Smallie is getting at Amersfoort. ‘PB’ reports that Smallie was very clever and jumped out of the box to get fed and then back inside. Yeap for Smallie.

Larry’s eyases are getting pretty independent and not sure they want Mum telling them what to do!

Pip/Hatch watch at Minnesota Landscape Arboretum coming up in 3-4 days.

‘H’ reports on the nests she is monitoring:

“5/17 Patuxent osprey nest – There were six fish brought to the nest by Dad.  After two days with very little to eat, chick 3 “Little” finally had a couple good meals on Monday.  At 0715 Dad brought a medium size whole fish, and Little was not allowed to eat.  It’s not just ‘Big’ that is aggressive toward Little, but also ‘Middle’ at times.  Dad quickly brought another fish at 0805, while the two older chicks were still full, and Little was able to eat 52 bites of fish. Little was shut out of the third feeding.  At 1336 Dad brought a very large headless fish, for a feeding that lasted nearly an hour.  Little ate 70 bites of fish at that meal, and had a nice crop.  There were two more fish deliveries from Dad of small fish, and Little was not able to get any bites of those fish.”

“5/27 The Mispillion Harbor Delaware osprey nest of Della and Warren has their first baby of the season.  One egg remains.”

“5/27 Captiva ospreys:  They had a better fishing day with 8 fish brought to the nest, including a partial catfish from Edie.  Darling (CO8) was only completely shut out of one short meal, and s/he managed a couple nice crops.”

Could this Golden Eagle nest be the exception to the rule of ‘Cainism’? There are two healthy eaglets at the Golden Eagle nest in Estonia. The first chick always eats first but there is enough food for all and second chick eats well, too along with Mum. Fingers Crossed.

The camera has been on and off with ‘Highlights’ at the West End. I have been told that Koa has branched. I did not see it! They are so big!

It was yesterday but we can celebrate today. One of my heroes.

Thank you so much for being with me today. This was a quick check on all those hatches and some coming up. It is a busy week and there are still eggs to hatch – lots of them! Take care everyone. See you soon.

Thank you to the following for their notes, comments, questions, posts, videos, articles and streaming cams that helped me to write my post today: ‘A, B, Geemeff, J, H, SP, PB’, Heidi McGrue, Clark PUD, Port of Ridgefield, Boulder County, Cowlitz PUD, Moraine St Park, Dyfi Osprey Project, BofPH, The Woodland Trust, Geemeff, Smallwood State Park, Maryland Western Shore Old Town Home, PSEG, Radford University Ospreys, Field Farm, The Scottish Wildlife Trust (LOTL), SK Hideways, SOAR, CS, Mlade Buky Stork Cam, Montana Osprey Project, VGCCO, Bywyd Gwylld Glaslyn, Amersfoort Falcons, Minnesota Landscape Arboretum, Patuxent River Park, Mispillion Harbour, Window to Wildlife, Eagle Club of Estonia, IWS/Explore, and USFWS History Archives.

Encounters with a GHOW

As many of you know, there are problems for the Bald Eagles with the Great Horned Owls wanting to take over their nests. We saw Bonnie and Clyde be successful in stealing a young eagle couple’s nest in Newton, Kansas located on the grounds of Farmer Derek. Those two have visited the nest as recently as 2 days ago. Great Horned Owls have taken over the Savannah Osprey Nest and laid eggs so no more Ospreys there, sadly.

Those are two instances on streaming cam where the owls have been successful. It has to be more common in the wild. I imagine that you could also provide me with several more examples. We know that a GHOW has been systematically attacking M15 and Harriet on their nest in Fort Myers, Florida. Just a few minutes ago a GHOW flew and knocked the female adult eagle off the US Steel Eagle nest at the Mon Valley Works–Irvin Plant in West Mifflin, PA.

The camera operator for the USS Bald Eagle nests is panning around the area. It is not a search and they said that the panning does not imply a search is needed. They are simply looking to see where the GHOW might be. These are the time stamps for the events this evening according to the camera moderator: “18:52:20 GHO swipes USS female(?) off her roost, 18:55:42 USS male(?) reacts to nearby swipe, 18:58:07 USS male relocates, chatter from both follows through 19:01”. The eagles cannot be heard on the streaming cam. Previously you could hear them so they are probably roosting at a distance and are safe and sound.

This is a daylight view of the nest. It is a gorgeous area.

Here is a link to the USS Bald Eagle cam:

The situation in PA at the USS Bald Eagle nest is unclear. It is my understanding that neither eagle has been seen on the streaming cam this morning. Everyone is hoping that they will show up so that worries can be put aside.

I was reminded, by someone using a three letter code for the Great Horned owls, to provide you with a listing of the proper four letter Alpha codes for all birds. Great Horned Owls are GHOW. The listing provided by the Carolina Bird Club also discusses the origin of the codes. Have a look:

https://www.carolinabirdclub.org/bandcodes.html

Liberty (f) and Guardian (m) were on the nest doing renovations and checking out the nest cup at Redding today. This couple raised triplets last year: Honor, Glory, and Rebel. We should be looking for eggs to be laid mid-February. Wouldn’t Valentine’s Day be nice?

Here is a history of the nest from last year’s breeding season by Judy B on the Hancock Wildlife Forum:

“A new camera was installed at the Turtle Bay nest for the 2021 nesting season (big thanks to Terri/Eaglewoman and the Friends of the Redding Eagles!) – and happily the eagles chose to use that nest! They laid three eggs in mid-February, and the three eaglets hatched March 21, 22 and 24. They were named Honor, Glory and Rebel by a poll of viewers. All three fledged successfully, if a bit non-traditionally. It was very hot in late May/early June as the eaglets turned 10 weeks old, frequently going above 100F/38C. Oldest eaglet Honor (who had never branched) had a very intentional fledge on June 3rd (74 days old). The following day, youngest eaglet Rebel left the nest as well, possibly slipping while trying to branch (the angle of the cam made it hard to be sure); Rebel was 72 days old. Happily local observers found both of them on the ground with an adult perched above; they landed near the river, and were able to have a drink of water. Middle eaglet Glory apparently liked having the nest all to his/her self, staying there another two weeks before fledging on June 18 (88 days old). All three fledglings were seen together perched beside the river on June 22, and all were seen through July 5. Both adults and two fledglings were seen in the area July 18, and one fledgling was around a few days later (it might be Honor who left first, but not sure). A happy year in spite of the challenges of the very hot weather.”

Why did I bring up the Redding nest? Because on 7 November 2021 a GHOW comes to the Redding nest! The video below uses slo-motion, graphics, and a narrative to highlight the encounter between Liberty and Guardian and the GHOW. The video is very insightful into the behaviour of Bald Eagles in alert and attack mode – if they are experienced:

Here is the link to the Redding Eagles streaming cam:

As breeding season continues, we might see more GHOW invasions. While GHOWs look soft and cuddly and through children’s stories we learn they are ‘wise’ – often portrayed as teachers – they are formidable adversaries. Liberty and Guardian are older and more experienced than the young Bald Eagle couple in Newton, Kansas that gave up their nest easily to the owls. Better to be safe than injured or dead.

Harriet and M15 have been the constant targets of GHOW attacks. Just go to YouTube and search for GHOW attacks M15 and you will find pages of videos going back years to the more recent occurrences. Here is one good example just 8 days ago:

On different occasions, M15 has been hit and has fallen down into the nest with Harriet and either eggs or nestlings. If you are a regular watcher of this great eagle couple, you will have seen M15 with injuries on his head because of the stealth attacks during the night.

In other Bird World News:

The first egg was laid at the Venice Golf and Country Club Osprey Nest (VGCCO) yesterday at 08:45. I know that some of you really enjoy this watching this nest in California.

Here is the link to this nest:

Still waiting at Achieva:

Two Osprey cams in New York say it is way too early to be thinking about eggs! Are either of these on your list to watch? Oyster Bay and PSEG?

After the fright the other day, everything appears to be relaxed and back to normal at the KNF nest. I am hoping we get the list of three possible names for this adorable eaglet today!

The eaglets on the WRDC are nice and full. Their thermal down has come in nicely. R1 still has some dandelions on its head. Soon we will begin to see thee contour and flight feathers on R1 and R2.

There are still cute fuzzy nestlings at NE Florida! They are doing great, too.

And just look at the change in Harriet and M15’s ‘babies’! Wow. I love seeing the plumage develop from that light soft down still on NE26 and 27 to the juvenile plumage that is really coming on E19 and E20.

No checks on Ervie. PLO is offline. Warm thoughts going out to the USS Bald Eagles. I am sure this is not the first time they have had to deal with this owl or another. Still, there is always cause for concern. That was a particularly ‘hard hit’ yesterday. Waiting for the final 3 names so voting can take place for the name of the little eaglet at KNF.

Thank you for joining me today. Please take care of yourselves. Stay safe.

Thank you to the following for their streaming cams where I took my screen shots: USS Steel Bald Eagles and Pix Cams, Redding California Eagles, SWFlorida Bald Eagles and D Pritchett, Achieva Credit Union, VGGCO, Oyster Bay Ospreys, PSEG Ospreys, NEFlorida Bald Eagles and the AEF, KNF Bald Eagles, Savannah Great Horn Owl Cam, and the WRDC.