Połczyn

[marika.solo]

youtube chat info - thx to everyone - wielkie dzięki za Wasze raporty
English translation – assisted by Gemini

male Mieszko - female Bawarka

10:23:32 food begging behaviour starts
1/ 10:26:04 Bawarka in - regurgitating (fish and frogs?) - 10:26:27 Bawarka out (with one pieces)

10:57:07 food begging behaviour starts
2/ 10:50:13 Mieszko in - feeding (a lot o fish) - 10:50:29 Mieszko out

13:19 reniaS06​​ 12.59.54 przylot M I karmienie; ​​znowu stos ryb, pięknie opóźnia staw

16:05@EwaSzalacha​​16..03 16. Mieszko - ​nie wiem czy cokolwiek zrzucił,zaraz odleciał
16:16 @wiesia-R​​ 16.03.15 Mieszko, stos ryb, ​16.03.31 odlot M

18:18 @MKmatylda​​ Bawarka 18:16:30 przylot - ​​Odlot Bawarki 18:16:47 - ​​Widziałam rybki. ​​Nie było tego tak dużo jak Mieszko dostarcza ale Bawarka sie dobrze spisuje.

[marika.solo]

who is who on the nest

13.06 - ringing day

Biometrics
VX7910 + 1FT4
Wing = 275 mm; Beak = 93 mm; Leg = 159 mm; Weight = 2400 g
VX7911 + Foot-Mounted Locator
Wing = 284 mm; Beak = 101 mm; Leg = 165 mm; Weight = 2700 g
VX7912 +Foot-Mounted Locator
Wing = 270 mm; Beak = 98 mm; Leg = 158 mm; Weight = 2500 g

29.06

Our trio were likely more or less identical in size across all measured parameters at the time of ringing. It is highly unusual for a transmitter to be fitted to the youngest chick; on the contrary, it is typically only the most developed or eldest chick that receives one. However, judging by appearances (having the least nestling down) and behaviour (such as the most intensive wing training), it seems that the eldest chick on this nest was the one that did not receive a transmitter. Or was that intentional?

continuation:
For VX7910 + 1FT4 and VX7912 + Foot-Mounted Locator, these were minimal differences. Weight probably decided it, rather than wing or leg length. (Females tend to have shorter bills, but at this age, I guess it's not a decisive indicator of sex yet)

VX7910 + 1FT4 i VX7912 + Foot-Mounted Locator – to były minimalne różnice, prawdopodobnie zdecydowała waga, a nie długość skrzydła czy nogi (samice miewają krótsze dzioby, ale w tym wieku nie jest to jeszcze decydujący wskaźnik płci).

[marika.solo]

feeding by Bawarka at 10:26 (maybe fish - I saw only two, bad view on the regurgitated food)

[marika.solo]

feeding by Mieszko at 10:50, following shortly after Bawarka's

[marika.solo]

In the evening, I will upload the photos using a new photohoster (image hosting site). Postimage still doesn't seem to work reliably; the images I uploaded this morning, which were visible earlier today, have gradually disappeared again