Immature red or black-billed Gull ?
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Immature red or black-billed Gull ?
Seven adult Black-billed Gulls at Rotoma today and an immature. Can someone please say for sure if it's red or black billed ?
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Re: Immature red or black-billed Gull ?
Looks like Red-billed to me, based on general build and head shape. Grey upperparts look dark enough, and bill a bit on the thick side for Black-billed.
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Re: Immature red or black-billed Gull ?
Two-month-old Red-Billed gull, readily started to moult its juvenile mantle & few scapulars.
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Re: Immature red or black-billed Gull ?
A belated thank you to both - much appreciated.