Bob Becker's photographs:
Sabine's Gull (Xema sabini)
Bob Becker's photographs:
Glaucous Gull (Larus hyperboreus)
Bob Becker's photographs:
Black-legged Kittiwake (Rissa tridacytla)
Bob Becker's photographs:
Iceland Gull 2 (Larus glaucoides)
Bob Becker's photographs:
Iceland Gull (Larus glaucoides)
Bob Becker's photographs:
Thayer's Gull (Larus glaucoides)
Bob Becker's photographs:
thayer's Gull (Larus thayeri)
Bob Becker's photographs:
Great Black-backed Gulls (Larus marinus)
Bob Becker's photographs:
Greater Black-backed Gull (Larus marinus)
Bob Becker's photographs:
Great Black-backed Gull (Larus marinus)
Bob Becker's photographs:
Greater Black-backed Gull (Larus marinus)
Bob Becker's photographs:
Lesser Black-backed Gull (Larus fuscus)
Bob Becker's photographs:
Lesser Black-backed Gull (Larus fuscus)
Bob Becker's photographs:
Lesser Black-backed Gull (Larus fuscus)
Bob Becker's photographs:
Bonaparte's Gulls
Bob Becker's photographs:
Bonaparte's Gull (Chroicocephalus philadelphia)
Bob Becker's photographs:
Bonaparte's Gull (Chroicocephalus philadelphia)
Bob Becker's photographs:
Bonaparte's Gulls (Larus philadelphia)
Bob Becker's photographs:
Bonaparte and Ringed-billed Gull
Bob Becker's photographs:
Bonaparte Gulls (Larus philadelphia)
Bob Becker's photographs:
Franklin's Gull (Larus pipixcan)
Bob Becker's photographs:
Franklin's Gulls
Bob Becker's photographs:
Franklin's Gull
Bob Becker's photographs:
Herring Gull (Larus argentus)
Bob Becker's photographs:
Herring Gull (Larus argentatus)
Bob Becker's photographs:
Herring Gull (Larus argentatus)
Bob Becker's photographs:
Vega Gull (Larus argentatus)
Bob Becker's photographs:
Herring Gull (Larus argentatus)
Bob Becker's photographs:
Herring Gull (Larus argentatus)
Bob Becker's photographs:
Laughing Gulls
