Sabine's Gull (ad) |
Sabine's Gull (ad in flight) |
Sabine's Gull (juv) |
Sabine's Gull (juv in flight) |
Little Gull (definitive basic) |
Little Gull (1st basic) |
Little Gull (juv) |
Bonaparte's Gull (adult alternate, still molting) |
Bonaparte's Gull (adult basic) |
Bonaparte's Gull (adult basic, in flight) |
Bonaparte's Gull (1st cycle, in flight) |
Ross's Gull (adult basic) |
Laughing Gull ( definitive basic) |
Laughing Gull (2nd cycle) |
Franklin's Gull (definitive alternate) |
Franklin's Gull (adult) |
Franklin's Gull (alternate in flight) |
Franklin's Gull (adult basic) |
Franklin's Gull (adult basic, molting) |
Heermann's Gull (adult) |
Mew Gull (adult basic) |
Mew Gull (adult basic, in flight) |
Mew Gull (2nd cycle, digiscoped) |
Ring-billed Gull (definitive basic, female) |
Ring-billed Gull (adult basic, in flight) |
Ring-billed Gull (3rd cycle, male) |
Ring-billed Gull (2nd cycle) |
Ring-billed Gull (late 1st cycle) |
Ring-billed Gull (early 1st cycle) |
Ring-billed Gull (1st cycle, in flight) |
Western Gull (definitive alternate) |
Western Gull (late 1st cycle) |
Western Gull (late 1st cycle, in flight) |
Western Gull (2nd cycle) |
Western Gull (3rd cycle) |
California Gull (Definitive Alternate) |
California Gull (adult basic) |
California Gull (definitive basic), flying |
California Gull (1st cycle) |
California Gull (2nd cycle) |
California Gull (3rd cycle) |
Herring Gull (definitive basic) |
Herring Gull (definitive basic, in flight) |
Herring Gull (juv) |
Herring Gull (1st cycle) |
Herring Gull (first cycle, in flight) |
Herring Gull (2nd cycle) |
Thayer's Gull (ad basic) |
Thayer's Gull (first cycle) |
Iceland Gull (definitive alternate) |
Iceland Gull (basic, first cycle) |
Lesser Black-backed Gull (definitive basic) |
Lesser Black-backed Gull (definitive basic flying) |
Lesser Black-backed Gull (4th cycle) |
Lesser Black-backed Gull (juv) |
Lesser Black-backed Gull (late 1st cycle) |
Glaucous-winged Gull (definitive basic) |
Glaucous-winged Gull (definitive basic) |
Glaucous-winged Gull (1st cycle) |
Glaucous-winged Gull (1st cycle) |
Glaucous-winged Gull (2nd cycle) |
Glaucous-winged Gull (3rd cycle) |
Glaucous Gull (first cycle, male) |
Glaucous Gull (first cycle, male, in flight) |
Glaucous Gull (1st cycle, female) |
Glaucous Gull (2nd cycle, male) |
Glaucous Gull (3rd cycle, male) |
Glaucous Gull (3rd cycle, male, in flight) |
Great Black-backed Gull (definitive adult, basic) |
Great Black-backed Gull (1st cycle) |
Great Black-backed Gull (1st cycle in flight) |
Great Black-backed Gull (4th cycle) |