Taxa Count: 27

LARIDAE

Larus argentatus

Larus argentatus argentatus

Larus atricilla

Larus californicus

Larus canus brachyrhynchus

Larus crassirostris

Larus delawarensis

Larus fuscus intermedius

Larus glaucescens

Larus glaucoides

Larus heermanni

Larus hyperboreus

Larus melanocephalus

Larus occidentalis

Larus occidentalis wymani

Larus occidentalis x glaucescens

Larus philadelphia

Larus ridibundus