A species that has appeared in a given area only a few times and whose normal range is in another area .
Compare it to casual.
- Great Frigatebird, Chinese Pond-Heron, Grey Heron, Whiskered Tern, Stygian Owl, Eurasian Hoopoe, Mugimaki Flycatcher, Eurasian Blackbird, Grey Silky-Flycatcher and many others are accidentals to the United States.
- Double-crested Cormorant, Redhead, Bald Eagle, Mourning Dove, Savannah Sparrow, Summer Tanager and many others are accidental to the United Kingdom.
- ^ Bellrose, Frank C. and The Audubon Society (1983). The Audubon Society Master Guide to Birding. National Geographic Society. ISBN 1426200722.
- ^ Dunn, Jon L. and Alderfer, Jonathan (2011). National Geographic Guide to the Birds of North America. National Geographic Society. ISBN 1426200722.
- ^ Mullarney, Killian; Lars Svensson, Dan Zetterström and Peter J. Grant (1999). Birds of Europe. Princeton University Press. ISBN 0691050538. Cite uses deprecated parameter
|This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.|
|This article is part of Project Bird Behaviour, a All Birds project that aims to write comprehensive articles on each behavioural term related to birds.|
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