Juvenile Glaucous Gull perched on a rock, Grundarfjörður
Grundarfjörður, Snæfellsnes Peninsula, Vesturland, Iceland (March 2014)
Juvenile (or first-winter) Glaucous Gull has a dark eye with a black-tipped pink bill. As the juvenile bird ages, through second-winter then third-winter, the eyes lighten in colour and the bill becomes more yellow with the gradual loss of the black tip to leave a red spot on the adult bird. (Reference: The Helm Guide to Bird Identification; An In-depth Look at Confusion Species, Keith Vinicombe, Alan Harris and Laurel Tucker, Bloomsbury, 2014). Juvenile Glaucous Gull is readily distinguished from juvenile Iceland Gull, especially when seen together. Juvenile Iceland Gull is a smaller bird with a smaller dark bill, rounded head and long primary projection.
For more information on this bird species see the following links:
Glaucous Gull / Wikipedia
Glaucous Gull / Bird Forum
BirdLife International / Glaucous Gull Larus hyperboreus
Glaucous Gull Larus hyperboreus / Cornell Lab of Ornithology
Tv(Shutter Speed) 1/1600
Av(Aperture Value) 4.0
Exposure Compensation +1
ISO Speed 200
Juvenile (or first-winter) Glaucous Gull has a dark eye with a black-tipped pink bill. As the juvenile bird ages, through second-winter then third-winter, the eyes lighten in colour and the bill becomes more yellow with the gradual loss of the black tip to leave a red spot on the adult bird. (Reference: The Helm Guide to Bird Identification; An In-depth Look at Confusion Species, Keith Vinicombe, Alan Harris and Laurel Tucker, Bloomsbury, 2014). Juvenile Glaucous Gull is readily distinguished from juvenile Iceland Gull, especially when seen together. Juvenile Iceland Gull is a smaller bird with a smaller dark bill, rounded head and long primary projection.
For more information on this bird species see the following links:
Glaucous Gull / Wikipedia
Glaucous Gull / Bird Forum
BirdLife International / Glaucous Gull Larus hyperboreus
Glaucous Gull Larus hyperboreus / Cornell Lab of Ornithology
Tv(Shutter Speed) 1/1600
Av(Aperture Value) 4.0
Exposure Compensation +1
ISO Speed 200
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