Nearctic Laridae (Gulls)
Larus occidentalis (Western Gull)
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Larus glaucescens (Glaucous-winged Gull)
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Larus delawarensis (Ring-billed Gull)
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Larus heermanni (Heermann's Gull)
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Larus canus (Mew Gull)
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Larus atricilla (Laughing Gull)
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Larus smithsonianus (American Herring Gull)
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Sterna sandvicensis (Sandwich Tern)
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Sterna maxima (Royal Tern)
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Hydroprogne caspia (Caspian Tern)
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