Periodic plumage changes in birds
![Periodic plumage changes in birds](/resources/medium/750/Periodic-plumage-changes-in-birds-2509.jpg)
Send comments
Chroicocephalus ridibundus
Black-headed Gull
In 2nd winter plumage.
Polska, Mazowieckie, Warszawa.
2/17/2013
AE008'05-130217014'JJK
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-16957.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-29272.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-7220.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-16980.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-15497.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-17069.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-17075.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-17099.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-17102.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-2460.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-2509.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-3461.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-29612.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-46.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-1746.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-1752.jpg)
![Periodic plumage changes in birds](/resources/small/128/Periodic-plumage-changes-in-birds-12982.jpg)