Late Friday in Bird World

12 August 2022

The most wonderful aspect of the trip to Hecla Island was not what I went for – to do a survey of the Bald Eagle nests for David Hancock – but, the two sightings of the Osprey at the Gimli Marina. Last night was simply a blessing. Those quiet wings helping the male to hover about 5 or 6 metres (or less) than 20 feet above my head. It was nice to see the pelicans and the cormorants and the swans. It is not the lack of any Bald Eagle sighting but the REASON there was not a single sighting that is worrisome.

Hecla Island is known as one of the Bald Eagle hotspots in our province. Every tourist brochure inevitably mentions the Bald Eagles. My brother-in-Law’s cabin would normally have a dozen eagles flying up and down catching fish within eye distance any day of the week from May-September.

So what happened this spring? One of those unexpected ‘Black Swan Events’ known in economics as an outlier (thanks CE for educating me on this phrase). It was the consistent heavy rain and flooding. There is still water standing and some cottages around Lake Winnipeg still have basements and yards full of water. As I noted in my blog last evening, despite there being an abundance of trees, the Bald Eagles have, according to the park rangers, historically made their nests around the edge of the lake along Black Wolf Trail which is on the causeway leading into the park. It is still flooded there. They are ‘afraid of what they will find’ when they are able to clear the area. So I was left with many questions:

  • Did the eagles abandon the traditional nests and lay a second clutch in a newly made tree nest?
  • Did the eagles abandon the area heading further north? Did they then lay a second clutch?
  • What was the real number of eagles arriving at Hecla this year?
  • Did Avian Flu play any part in any of this?

A single adult bald eagle has been recorded and a juvenile the end of June. I could not locate any tree nests other than a single old long abandoned/falling apart one. I was told the eagles had been nesting there for some 35 years. I think it is a sad situation but there should be some clarity as the birds begin their fall migration and counts are started. So while not seeing the Bald Eagles is a bit of pickle, the worrisome aspect is that those eagles – and many others – lost their opportunity to raise young this year just like other water fowl that breed in our province in the summer. That includes Pelicans, Cormorants, Geese, and ducks.

Thanks, ‘M’ for reminding me about the unringed visitor to the Dyfi Osprey nest in Wales. This is a fledgling about the same age as the three ‘Ps’ of Idris and Telyn. Where did she come from? The theories are quite interesting.

This bird is a beauty!

It is always stories like this that prompt a conversation between me and Tiger Mozone and they tend to waiver back and forth about the history of Welsh nests leading to more questions. She is unringed. So where did she come from? What you also have to realize is that Aran on the Glaslyn nest and Idris on the Dyfi nest are also unringed. This leads to the very heart of the issue. Idris and Aran are males. So was Dai Dot. Tiger believes that there is at least one other nest, a very significant nest connected with the early Ospreys – the Welsh pool- that is producing these males. He asks, ‘Otherwise where did these males come from?’

Here is the link to that story:

https://www.dyfiospreyproject.com/blog/emyr-mwt/extremely-rare-visitor-unringed-fledgling

The story coming out of Wales that I am really keen on is Tegid’s children. Tegid is Z1, 2016 son of Glesni and Monty at the Dyfi Nest. He was the third egg. Egg 1 hatched that year, Ceri. Egg 2 did not hatch. Tegid was egg 3. Tiger did not believe that Tegid would ever return. Well, he did and he took over the ON4 nest, the first osprey platform erected in Wales by the group, Friends of the Osprey. His two chicks of 2020 (his first ever clutch) have returned. They are Z5, daughter, and KC8, a male. There is really good DNA floating around those two – they are the grandchildren of Monty and Glesni.

https://www.dyfiospreyproject.com/blog/emyr-mwt/blue-z5-another-dyfi-grandchild-returns-wales?fbclid=IwAR1VVJ3WvtSmfSNM-gHrlR7VnUjglkFuhOYIgOVuho_UJSDWodDvEFTB7jE

Looking at the Dyfi Family Tree and adding these two birds to my return list, gives me the following data for my third hatch survivors/returnees for the Dyfi nest:

  • 34 chicks hatched from 2011-22
  • 29 out of the 34 chicks lived to fledge
  • 14 male chicks to 15 females fledged
  • 9 chicks have returned out of 28 eligible
  • 5 first hatches and 4 third hatches have returned. Big Note: Not a single instance of a second chick returning has been recorded.
  • Of the 9 returning, 7 were male and 2 were female.
  • Return survival rate is 32.14%

I wish that every other osprey nest kept such good records as Emyr Evans at the Dyfi Osprey Project in Wales. Rutland did until 2015. This kind of information is really enlightening. For example, the likelhood of a second hatch female fledgling returning using these stats is nil. Despite the low sample size, how accurate for the broader population of Western Ospreys is that 32% survival rate? This would mean that 68% of all ospreys will perish during their first or second year. Something to think about as we move into our discussion on migration Monday.

This is a beautiful little video of Cholyn, the matriarch of the Two Harbours Eagle Nest in the Channel Islands. Mum to Lancer this year and to Thunder who is the mate of Akecheta at the West End, Cholyn is 23 years old.

It was nice to come home and see that the little sea eaglets are as spunky as ever! and being fed like crazy. Just look at the crops on those two! Remember there are now less frequent feedings but they will eat much, much more at a single meal.

Those feathers are really coming in and the chicks are itchy – and they are preening. Lady or Dad are not far away but you will find, as has been the practice for a bit, that Lady is leaving them in the nest alone more and more.

They are also wandering out of the nest cup. Development is spot on.

We have egg 2 at the Port Lincoln Osprey Barge. Well done Mum and Dad. Right on time.

All of the Black storklets at the nest of Karl II and Kaia have fledged. They are now often off the nest flying in when an adult arrives with fish. Today it was Karl II delivering lots of fish. I wonder if Kaia has started her migration? Must check!

Karl II waited for the chicks to arrive at each of the two deliveries below.

Karl II arrives with no one on the nest…they will rush in!

‘H’ writes to say that at least one of the osplets on the Boathouse nest has fledged. The only way to observe the nest is from a distance using a different streaming cam. What a disappointment after watching Dory and Skiff raise those three this year.

I have had no confirmation that Titi has returned to the Janakkalan nest in Finland after fledging.

Victor and 16 were spotted today on the branches of the trees at the St Joseph River in South Bend.

It is always reassuring to see the fledglings and especially Little Bit 17.

I have not seen any recent updates on L3 and L4, the Red-tail fledglings of Big Red and Arthur at Cornell.

Thank you so much for joining me this evening. Take care everyone. See you soon.

Thanks to the following for their streaming cams and/or posts where I took my screen captures: Notre Dame Eagles FB, Eagle Club of Estonia and Looduskalender, Finnish Osprey Foundation, Sea Eagles@Birdlife Australia Discovery Centre Sydney Olympic Forest, Port Lincoln Ospreys, Explore.org and the Institute for Wildlife Studies, and Dyfi Osprey Project.

Mother’s Day in Bird World

8 May 2022

It’s Mother’s Day and every year I send a shout out to all those great bird mothers who don’t know anything about flowers, chocolates, or going for brunch but who, as best they can, as old as some are, keep our skies filled with the sound of hawks, eagles, falcons, Sky Calls, and song. They have brought us great joy, sorrow, and have taught us so very, very much.

Each of you will have your own list. I have discovered that birds are very personal. So pause and thank your favourites!

The first bird mother I always think of is Big Red. She is not a big strong eagle or a fish hawk. No, she is a medium sized hawk that melts our hearts year after year. Big Red, the Matriarch of the Red-tail Hawks is enjoying early morning sunshine and a necklace of eyases – four of them. She surprised everyone with those four eggs. This nineteen year old probably has a lot more tricks up her talon for us.

We know she hatched in 2003 and that she was hatching chicks in 2005 but the camera did not come live until 2012. That is 7 years unaccounted for. Big Red has consistently laid three eggs and the only time since 2012 she did not fledge three was last year because of K2s beak issue. Potentially she has fledged 51 hawks. 51. Incredible.

She is always happy when there are chicks in the nest and she seems energized this year with the four.

Cholyn at the Two Harbours Bald Eagle nest in the Channel Islands gets the thumbs up this morning. At the age of 24, she is still busy raising eaglets. This year her and Chase had the soon-to-be-banded Only Child, TH1, this year. Cholyn is the mother of Thunder at the West End nest and is the grandmother to another generation of Channel Islands eagles.

Redwood Queen is 23 years and 11 months old and is currently either incubating an egg in Big Sur or brooding a chick! She survived the Dolan Fire and is famously known for her chick, Iniko Orange 1031, who also survived that fire to the surprise of many. She has hatched and fledged 6 condors and fostered and fledged 3. She is currently with 477 Phoenix. It is their second season together. Their egg failed last year. Fingers crossed for this year. Fitting that they both survived massive fires to rise again.

Mrs G, the oldest Osprey in the UK, at the age of 21-23 years is currently brooding three eggs with her mate, Aran, at the Glaslyn Nest. They had a rough patch last year so I am really hoping that this year turns out incredibly well for them.

If we count this year, she has laid 57 eggs with 46 hatched and 41 fledged.

There are lots of Ospreys. I can easily put Maya at the Rutland Manton Bay nest at the top of a list – 20 fledglings in 6 years. Is that correct? But I want to give a hat’s off to a much overlooked female at the Foulshaw Moss nest in Cumbria. Blue 35 was smart and sneaky and made sure that her third hatch —–1/8 the size of the other two older siblings at hatch – survived. She removed fish and once the older ones were asleep returned to the nest and fed Blue 463. As a result, 463 thrived and became a huge female and quite dominant on the nest. Thank you Blue 35. She was also one of the only Osprey nests to fledge three in 2021.

Peregrine Falcon Mothers. Hats off to the Mum at the Manchester New Hampshire scrape for keeping those five eyases in tip top shape. Not easy when some are extraordinarily larger than the youngest! The tiniest one is in the front. So small you can’t see it! Mum is doing a great job.

All full and sleepy.

There is one other Peregrine Falcon Mum who is now raising two eyases after losing her mate during the egg laying part of this breeding season. That falcon is Annie at the UCal-Berkeley scrape in The Campanile. She is a grandmother – they know that her daughter is on Alcatraz Island and that this is at least her second year if not more to raise chicks.

There are now too and it appears that Lynn Scofield was completely correct. The last egg is unviable. This means that egg 1 and egg 3 hatched with the potential for one chick to be Grinnell’s and the other to be possibly Alden’s. I hope so! Annie survived the death of her long term mate, Grinnell, to hatch the two chicks. Heart warming.

Why not think about your favourite ‘Bird Mums’ today? It is a great way to thank them ———— each and everyone of them ——— for the joy they bring to our lives!

Have a great Sunday everyone. There will be a nest check in later today. Thank you so much for joining me. Take care!

Thank you to the following for their streaming cams and/or webpages where I took my screen captures: Cornell Bird Lab RTH, Ventana Wildlife Society, Brywd Gwyllt Glaslyn, Cumbrian Wildlife Trust, Peregrine Falcon Network Manchester NH, Cal Falcons, and Explore.org.