Tern at Skerries, North County Dublin, Ireland (1 Viewer)

[vgarland]

I am resuming Common Tern (Juvenile)......not sure about the black patch on the wing!

Help apptreciated!!

Victor

 

[Prestdj]

common tern moulting from juvenile to 1st winter hence keeping the juvenile brown feathers and black primaries the thick black patch is also a good id point arctic tern has a smaller patch

 

[vgarland]

Thanka Prestdj.....it is appreciated!

Victor.