Dyfi Osprey Project

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Ferenz
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Re: Dyfi Osprey Project

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Welcome little bobblehead :bounce:
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seira
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May 25

https://www.facebook.com/dyfiospreyproj ... 4123922084
SHE'S OUT!!!!!!

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May 26

https://www.facebook.com/dyfiospreyproj ... 035555520/
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An hour after hatching yesterday, this happened...
Kleenex should be sponsoring these videos 😆
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https://www.facebook.com/dyfiospreyproj ... 7573625739
Telyn has just got up after sheltering from the wind all day and - as if by magic - there are TWO!!

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Post by seira »

May 28

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HAT–CHICK!!!!
1. 🐣 25th MAY: 1st Chick hatched (time 16:28). Incubation/hatching time: 39.0 days
2. 🐣🐣 26th MAY: 2nd Chick hatched (time 16:39). Incubation/hatching time: 36.9 days
3. 🐣🐣🐣 28th MAY: 3rd Chick hatched (time 09:10). Incubation/hatching time: 35.7 days

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Post by seira »

Idris... please eat the fish head first next time...
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feeding
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Post by seira »

feeding
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chicks food coma
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Idris
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Post by seira »

May 29

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The 2022 Hatching Video is up.
This is the best video we've ever made; the high resolution multi-cam footage is remarkable. The best we've ever seen.
Thank you so much to those of you that have donated to this year's camera appeal - we're almost 80% of the way there already.
Extraordinary footage, thanks to you. We hope you enjoy it 🙂
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May 31

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Here's the most frequently asked question at this time of year:
Q. Will Telyn feed her three chicks equitably, sharing food equally between the three?
A. No.
She will feed the strongest, the closest, the one that shouts the loudest, first. It's better for her to have one or two strong healthy chicks than to spread the food out equally and have three weaker chicks.
If resources are plentiful (food in this case), this strategy won't matter and all three chicks will have plenty to eat - even Bobby Bach here at breakfast this morning will get more than enough to eat.
The good news is that the weather forecast for the next 10 days is perfect for tiny growing ospreys. All three should get enough to eat, no matter where they are in the canteen queue.
Goldilocks weather: not too cold, too hot, too windy... just perfect 🐻🐻🐻


June 1

https://www.facebook.com/dyfiospreyproj ... 905946038/
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Handbags at dawn, seems to have started early this year 🥊🥊🥊
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June 4

https://www.facebook.com/dyfiospreyproj ... 666517157/
Despite the damp conditions, all three chicks are eating well.
But can you tell which is which?

June 2

https://www.facebook.com/dyfiospreyproj ... 3354668494
This one is a bit science-y, sorry.
Delayed Incubation in Ospreys
......


Aeron/Z2 and Blue 014

June 6

https://www.facebook.com/BywydGwylltGla ... 9769233595
The first chick for Z2/"Aeron" and Blue 014 hatched on the Pont Croesor nest overnight.
We do not know how many eggs were laid in the nest, so we will now have to wait until the chicks heads appear above the rim of the nest in a couple of weeks time.
Congratulations to everyone involved with this breeding pair.

June 7

https://www.facebook.com/BywydGwylltGla ... 607745590/
Here is the moment that we realised a chick had hatched on the Pont Croesor nest, when Blue 014 began to feed it with a fish delivered by Z2/Aeron"=.
Later on in the morning Z2 was eager to join in with the feeding.
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Post by seira »

June 6

https://www.facebook.com/dyfiospreyproj ... 8607015302
The oldest chick is starting to explore the nest a bit now and wander around.
That'll teach him.

June 7

https://www.facebook.com/dyfiospreyproj ... 518744965/
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Young osprey chicks don't always eat together.
Eating first has its advantages... and its downsides 🤭


Idris feeding little one
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selfie ?
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seira
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June 8

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The chicks are looking really strong and healthy now, they are 14, 13 and 11 days old. The perfect Goldilocks weather of the first two weeks has meant no dramas on the nest.
Apart from the odd boxing match of course 🥊🥊🥊
Today we will work on a video for you, explaining exactly why it is osprey chicks display these aggressive-type behaviours during the first four weeks of life.

June 9

https://www.facebook.com/dyfiospreyproj ... 157465553/
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The chick aggression video we posted last week garnered a huge amount of reaction. One week on, the chicks are still at it 🥊🥊🥊
This video explains the role of aggression-type interactions in osprey chicks...

June 10

https://www.facebook.com/dyfiospreyproj ... 630659979/
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First sea bass of the season...
We can still just about make out which chick is which:2-3-1
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Post by seira »

June 12

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Another bit of Science Sunday for you (so no apologies this time lol!)...
The chicks are now 18, 17 and 15 days old. They are growing out of the most vulnerable stage of their lives - the first two weeks. Predation pressures are decreasing by the day and the chicks will now have some control of body thermoregulation, meaning that sudden weather events are less likely to harm them.
They have just entered the Rapid Growth Phase, a two-week period of their lives where they exponentially put on body weight and grow.
Their adult feathers are also starting to pin through now too. They will need these for their long migration south at 12-14 weeks old before finally discarding them in their first complete feather moult starting in November and December - probably somewhere in Senegal, Gambia or Guinea-Bissau, although around 5% of ospreys overwinter in southern Europe.
We wait until this Rapid Growth Rate period has ended before ringing the birds, for obvious reasons.
It's impossible to gender the chicks right now, but at the end of this Rapid Growth Phase females will be around 15% larger and heavier than males. If we have a mix of males and females, then it is easier to gender at the end of this growth spurt.
The birds will fledge around two weeks after we ring them. They don't increase in size much more during this time, they are almost the size of adults at five weeks old. What we'll see is continued feather growth - particularly of the flight feathers on the wings (primaries, secondaries etc). They'll obviously need these feathers at near maximum-length for optimal flight performance.
Thank you for all your name suggestions yesterday - we now have over 200 potential names to choose from. Who knew Wales had so many rivers!


June 13

https://www.facebook.com/dyfiospreyproj ... 2605177902
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Telyn must have read yesterday's post about the chicks being increasingly able to control their own body temperature.
She is now spending less time brooding them, even 'cwtching' up to Idris on the nest-perch overnight.
How sweet 🥰
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June 14

https://www.facebook.com/dyfiospreyproj ... 908575795/
Just having a Sleep-over.
Each other.

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Lovely view of all three chicks having just been fed by Telyn.
Photobombed by a male kestrel!
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June 18

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This is Idris’ third year with us on the Dyfi; will this be third time lucky for him raising three chicks?
One egg did not hatch in 2020 (now on display in the Dyfi Wildlife Centre) and one chick sadly died in 2021 in a freak accident at just eight hours old.
Idris is not ringed so we have no idea where he is from.
He’s such a good partner for Telyn and considering the heartbreak of Monty not returning in 2020, we - and Telyn - are so lucky to have him ❤️

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June 17

https://www.facebook.com/dyfiospreyproj ... 7804340382
If you look at this picture and understand it...
Well, you're of a 'particular age'... 😉

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June 19

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Here is another Science Sunday for you...
Idris caught quite a rare fish last week, a twaite shad (note the chicks are much larger than this now).
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Post by seira »

June 27

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All ospreys at a few weeks old have deep orange eyes. That's a fact.
As they transition into adulthood, their eyes change colour and become lighter (apart from Monty whose eyes got darker!).
And finally, adult male ospreys often have slightly darker eyes than females. That's also a fact.
So, it's all about timing and at what developmental stage do the eyes of chicks a few weeks old start to change colour. On that premise then, could eye colour be a diagnostic tool we can use with the amazing nest imagery we have these days to gender the birds?
We've noticed in the last week or so that the first chick (bottom left) has paler eyes than both its siblings. Are we looking at one girl and two boys here?
This is just a hypothesis, and probably a tenuous one, but the eye colours are definitely different. Chick order from the back: 2/3/1
We'll know more at the end of the week when we ring and name all three 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿

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June 28

https://www.facebook.com/dyfiospreyproj ... QvJBoLwzGl
The chicks are currently between four and five weeks old. Later today they are:
34 Days old - Chick 1
33 Days old - Chick 2
31 Days old - Chick 3
Ringing and naming has been postponed from today due to strong winds – even Idris is struggling with his flounder up there.
We'll try again tomorrow or Thursday.

Osprey Life on a Windy Nest
https://www.youtube.com/watch?v=mYQ7gZS3xFA
by Dyfi Osprey Project
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June 29

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We've woken up to a tranquil, calm Dyfi. The high winds of yesterday have gone and we have a peaceful, albeit damp at sunrise, nest.
We will ring, weigh and name the Dyfi chicks later on this morning. At the time of ringing they will be 34.7, 33.7 and 32.1 days old.
The Live Streaming camera will remain on, but not look directly at the ringers. Janine will be informing us in real time on Chat as to what the weights and genders of our chicks are - and of course, their ring numbers.
They will be named later on this afternoon after Welsh rivers and lakes - and a professional cinematic video made of the whole ringing process . This should be ready, along with a full blog, tomorrow.
If you're new here, welcome; here is the link to the Live Streaming: https://www.youtube.com/user/DyfiOspreyProject


before ringing, Idris
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after ringing, Telyn
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after ringing, osprets
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Ring numbers : 7B0, 7B1 and 7B2...... and three girls :laugh:
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Post by seira »

https://www.facebook.com/dyfiospreyproj ... kCURKUMcbl
Evening
We found a great little dry weather window at around midday today and ringed our chicks - we have three girls!
We have named them:
1. Pedran
2. Padarn
3. Paith
We'll start on the ringing video tonight and hopefully have this available along with a full blog for you tomorrow 🙂

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Post by seira »

June 30

https://www.facebook.com/dyfiospreyproj ... PE7KLDc4rl
Evening
It turns out 2022 is a record year!
As promised, here is the 2022 Ringing blog & Video:
https://www.dyfiospreyproject.com/blog/ ... nging-2022

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