Lesser Black-backed Gull 2CY, May 10 2017, Katwijk, the Netherlands.
Graellsii-type 2CY bird. Complete moult not started yet, all replaced feathers were included in the post-juvenile moult on the wintering grounds. Advanced moult in inner wing-coverts, upper tertials and single inner scecondary.
![](images/2017/2cym_38A8427.jpg)
![](images/2017/2cym_38A8431.jpg)
![](images/2017/2cym_38A8448.jpg)
![](images/2017/2cym_38A8519.jpg)
|