List of birds of Maryland

The Baltimore oriole is the state bird of Maryland.

This list of birds of Maryland includes species credibly documented in the U.S. state of Maryland and accepted by the Maryland / District of Columbia Records Committee (MRC) of the Maryland Ornithological Society as of 2022. There are 456 species included in the official list. Eight additional species of questionable origin and two of exotic origin per the MRC are also included in this page.[1] Of the 460 species, 121 are rare anywhere in the state, 64 are rare in some part of the state, six have been introduced to North America, two are extinct, and two have been extirpated. Two additional accidental species have been added from different sources.

This list is presented in the taxonomic sequence of the Check-list of North and Middle American Birds, 7th edition through the 62nd Supplement, published by the American Ornithological Society (AOS).[2] Common and scientific names are also those of the Check-list, except that the common names of families are from the Clements taxonomy because the AOS list does not include them.

Unless otherwise noted, all species listed below are considered to occur regularly in Maryland as permanent residents, summer or winter visitors, or migrants. The following tags are used to annotate some species:

  • (R) Rare - "Reviewable if found anywhere in Maryland" per the MRC
  • (R*) Rare (limited area) - "Reviewable if found in certain specified ranges in Maryland" per the MRC
  • (QO) Questionable origin - "Accepted species that may or may not be wild or naturally occurring" per the MRC
  • (EO) Exotic origin - "Accepted species whose natural history precludes wild or natural occurrence" per the MRC
  • (I) Introduced - a species that has been introduced to North America by the actions of humans, either directly or indirectly
  • (Xt) Extinct - a recent species that no longer exists
  • (Xp) Extirpated wild - a natural or wild species which is no longer found in Maryland, but still exists elsewhere
  • (Xx) Extirpated exotic - a formerly established introduced species which no longer occurs in Maryland
  1. ^ "Official List of the Birds of Maryland" (PDF). Maryland / District of Columbia Records Committee. July 30, 2021. Retrieved August 10, 2021.
  2. ^ "Check-list of North and Middle American Birds". American Ornithological Society. June 29, 2021. Retrieved August 9, 2021.