American Herring Gull (Larus smithsonianus) [XC149265]
by Paul Marvin from Marblehead, Massachusetts, United States (call)
American Herring Gull (Larus smithsonianus) [XC135064]
by Paul Marvin from Manomet Bird Observatory, Manomet, Plymouth County, Massachusetts, United States (call)
Nest
A scrape on the ground lined with grass, seaweed and feathers, on coasts, cliffs, near water. In colonies.
Eggs (Guide)
Clutch Size: usually 3
Color: pale blue, olive or cinnamon overlaid with brown markings
Incubation: 30 - 32 days
Young
Fledge: 42 - 49 days
Subspecies
Considered by some authors as a subspecies of European Herring Gull (Larus argentatus).
Considered by some authors to be a subspecies of European Herring Gull (Larus argentatus).