It depends on which species of blackbird you are referring to. The Eurasian Blackbird is a species of thrush with the scientific nameTurdus merula.

In the New World, however, "blackbird" refers to the family Icteridae which includes New World blackbirds, New World orioles, the Bobolink, meadowlarks, grackles, cowbirds, oropendolas, and caciques. Collectively these New World blackbirds are known as icterids. Below are some Icterids commonly found in North America:

Red-Winged Blackbird - Agelaius phoeniceus

Brewer's Blackbird -

Euphagus cyanocephalus

Common Grackle -

Quiscalus quiscula

Great-Tailed Grackle -

Quiscalus mexicanus

Western Meadowlark -

Sturnella neglecta

Eastern Meadowlark -

Sturnella magna

Bobolink -

Dolichonyx oryzivorus

Baltimore Oriole -

Icterus galbula

Bullock's Oriole -

Icterus bullockii

Hooded Oriole -

Icterus cucullatus

Brown-Headed Cowbird -

Molothrus ater

Bronzed Cowbird -

Molothrus aeneus

Yellow-Winged Cacique -

Cacicus melanicterus