Gulls and Terns

Breeding adult Aleutian Tern. Photo: Patty McGann/Flickr (CC BY NC 2.0)

Aleutian Tern

Onychoprion aleuticus

Gulls and Terns

Breeding adult. Photo: Robert Bakelaar/Audubon Photography Awards

American Herring Gull

Larus smithsonianus

Gulls and Terns

Breeding adult. Photo: William Wingfield/Audubon Photography Awards

Priority Bird

Arctic Tern

Sterna paradisaea

Gulls and Terns

Adult. Photo: Andrew Scott/Flickr Creative Commons

Black Noddy

Anous minutus

Gulls and Terns

Breeding adult and downy young. Photo: Jim Gray/Audubon Photography Awards

Priority Bird

Black Skimmer

Rynchops niger

Gulls and Terns

Breeding adult. Photo: Mick Thompson/Flickr (CC BY NC 2.0)

Black Tern

Chlidonias niger

Gulls and Terns

Breeding adult. Photo: Martha de Jong-Lantink/Flickr (CC BY NC ND 2.0)

Black-headed Gull

Chroicocephalus ridibundus

Gulls and Terns

Breeding adult Black-legged Kittiwake. Photo: Becky Matsubara/Flickr (CC BY 2.0)

Black-legged Kittiwake

Rissa tridactyla

Gulls and Terns

Breeding adult. Photo: Sergey Yeliseev/Flickr (CC BY NC ND 2.0)

Black-tailed Gull

Larus crassirostris

Gulls and Terns

Non-breeding adults and immature. Photo: Rick Derevan/Flickr (CC BY-NC-ND 2.0)

Bonaparte's Gull

Chroicocephalus philadelphia

Gulls and Terns

Breeding adult. Photo: John Boyle/Flickr (CC BY NC 2.0)

Bridled Tern

Onychoprion anaethetus

Gulls and Terns

Adult Brown Noddy. Photo: Forest and Kim Starr/Flickr (CC BY 2.0)

Brown Noddy

Anous stolidus

Gulls and Terns

Adults. Photo: Renee Simmons/Audubon Photography Awards

California Gull

Larus californicus

Gulls and Terns

Breeding adult. Photo: Mick Thompson/Flickr (CC BY-NC 2.0)

Caspian Tern

Hydroprogne caspia

Gulls and Terns

Breeding adult. Photo: Robert Cook/Audubon Photography Awards

Priority Bird

Common Tern

Sterna hirundo

Gulls and Terns

Breeding adult Elegant Tern. Photo: Jacqueline Deely/Audubon Photography Awards

Elegant Tern

Thalasseus elegans

Gulls and Terns

Breeding adult and downy young. Photo: Dieter Schonwetter/Audubon Photography Awards

Forster's Tern

Sterna forsteri

Gulls and Terns

Breeding adult Franklin's Gulls. Photo: David Mitchell/Flickr (CC BY-2.0)

Franklin's Gull

Leucophaeus pipixcan

Gulls and Terns

Breeding adult Glaucous Gull. Photo: Per Harald Olsen/NTNU/Flickr (CC BY 2.0)

Glaucous Gull

Larus hyperboreus

Gulls and Terns

Immature Glaucous-winged Gull. Photo: Brad Rangell/Great Backyard Bird Count

Glaucous-winged Gull

Larus glaucescens

Gulls and Terns

Breeding adult. Photo: Mark Eden/Audubon Photography Awards

Great Black-backed Gull

Larus marinus

Gulls and Terns

Breeding adults. Photo: Tom Benson/Flickr (CC BY-NC-ND 2.0)

Gull-billed Tern

Gelochelidon nilotica

Gulls and Terns

Breeding adult. Photo: Janine Schutt/Audubon Photography Awards

Heermann's Gull

Larus heermanni

Gulls and Terns

Breeding adult. Photo: Robert Bakelaar/Audubon Photography Awards

Herring Gull

Larus argentatus

Gulls and Terns

Immature, first year Iceland Gull (Thayers). Photo: Alan Schmeirer/Flickr (CC PublicDomain)

Iceland Gull

Larus glaucoides

Gulls and Terns

Adult. Photo: Martha de Jong-Lantink/Flickr (CC BY-NC-ND 2.0)

Ivory Gull

Pagophila eburnea

Gulls and Terns

Adult. Photo: Patrick Kavanagh/Flickr (CC BY-2.0)

Kelp Gull

Larus dominicanus

Gulls and Terns

Breeding adults. Photo: Melissa James/Audubon Photography Awards

Laughing Gull

Leucophaeus atricilla

Gulls and Terns

Breeding adult and juvenile. Photo: Anja Trepper/Audubon Photography Awards

Priority Bird

Least Tern

Sternula antillarum

Gulls and Terns

Non-breeding adult Lesser Black-backed Gull. Photo: Tom Benson/Flickr (CC BY NC ND 2.0)

Lesser Black-backed Gull

Larus fuscus

Gulls and Terns

Breeding adult. Photo: Ekaterina Chernetsova/Flickr (CC BY-2.0)

Little Gull

Hydrocoloeus minutus

Gulls and Terns

Breeding adult. Photo: pilipenkod/iStock

Red-legged Kittiwake

Rissa brevirostris

Gulls and Terns

Non-breeding adult. Photo: Marian Herz/Audubon Photography Awards

Ring-billed Gull

Larus delawarensis

Gulls and Terns

Juvenile Roseate Tern and breeding adult Roseate Tern. Photo: Agami Photo Agency/Shutterstock

Priority Bird

Roseate Tern

Sterna dougallii

Gulls and Terns

Breeding adult. Photo: Shiloh Schulte/USWFS/Flickr (CC BY NC ND 2.0)

Ross's Gull

Rhodostethia rosea

Gulls and Terns

Breeding adults. Photo: Melissa James/Audubon Photography Awards

Royal Tern

Thalasseus maximus

Gulls and Terns

Breeding adult. Photo: Tom Benson/Flickr (CC BY NC ND 2.0)

Sabine's Gull

Xema sabini

Gulls and Terns

Breeding adults. Photo: Lorraine Minns/Audubon Photography Awards

Sandwich Tern

Thalasseus sandvicensis

Gulls and Terns

Immature, second year. Photo: Becky Matsubara/Flickr (CC BY 2.0)

Short-billed Gull

Larus brachyrhynchus

Gulls and Terns

Non-breeding adult. Photo: Jim Gain/Flickr (CC BY NC 2.0)

Slaty-backed Gull

Larus schistisagus

Gulls and Terns

Breeding adult. Photo: Duncan McCaskill/Flickr (CC BY NC 2.0)

Sooty Tern

Onychoprion fuscatus

Gulls and Terns

Adult Western Gull. Photo: Becky Matsubara/Flickr (CC-BY-2.0)

Western Gull

Larus occidentalis

Gulls and Terns

Breeding adult. Photo: Frank Vassen/Flickr (CC-BY-2.0)

White-winged Tern

Chlidonias leucopterus

Gulls and Terns

Adult. Photo: AlanHarper/Flickr (CC-BY-NC-2.0)

Yellow-footed Gull

Larus livens

Gulls and Terns

Breeding adults Photo: Radovan Vaclav/Flickr (CC-BY-NC-2.0)

Yellow-legged Gull

Larus michahellis

Gulls and Terns

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