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23,453 species in Massachusetts
Haliaeetus leucocephalus
Pheucticus ludovicianus
Passerculus sandwichensis
Mergus merganser
Corvus ossifragus
Dryocopus pileatus
Circus hudsonius
Leucophaeus atricilla
Corthylio calendula
Hylocichla mustelina
Certhia americana
Bucephala clangula
Egretta thula
Piranga olivacea
Melanitta deglandi
Catharus fuscescens
Catharus guttatus
Sterna hirundo
Buteo lineatus
Spizelloides arborea
Polioptila caerulea
Sphyrapicus varius
Charadrius semipalmatus
Melanitta perspicillata
Setophaga americana
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