Gull Ages ? (1 Viewer)

E

Eos9

Well-known member

• Apr 8, 2011

• #1

I would appreciate another opinion on the ages of the following two gulls as a friend disagree's with me on one of them.
I have not mentioned the I/D for those people who want to tell me the I/D and age !
What I will say is that both photos were taken in the UK in March.

Thanks

 

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S

snowcap

Well-known member

• Apr 8, 2011

• #2

Hi, the first Herring Gull is a 2nd winter moulting to 2ndsummer and the second is a 3rd winter moulting to 3rd summer.

 

lou salomon

the birdonist

• Apr 8, 2011

• #3

snowcap said:

Hi, the first Herring Gull is a 2nd winter moulting to 2ndsummer and the second is a 3rd winter moulting to 3rd summer.

Click to expand...

agreed.

or: second alternate and third alternate
or: 3cy and 4cy

 

E

Eos9

Well-known member

• Apr 11, 2011

• #4

Thanks guys info much appreciated. Not sure I've heard of the 3cy and 4cy terms used before but I'm afraid that when it comes to Gull plumages I've still a lot to learn !

 

lou salomon

the birdonist

• Apr 11, 2011

• #5

1cy = 1st calendar year (hatching ->31.12. of that year)
2cy = 2nd calendar year (from 1.01. to 31.12. of the following year), etc.