Recommended citation: Global Invasive Species Database (2025) Species profile: Corvus brachyrhynchos. Downloaded from http://iucngisd.org/gisd/speciesname/Corvus+brachyrhynchos on 14-01-2025.
Outerbridge, M. E. & Arthur, S. (2016). Crow (Corvus brachyrhynchos) Management Plan for Bermuda. Department of Environment and Natural Resources, Government of Bermuda. 26 pages.
General information
Madeiros, J. Breeding Success and Status of Bermuda’s Longtail Population (White-tailed Tropicbird) (Phaethon lepturus catsbyii) at Ten Locations on Bermuda 2009-2011. Terrestrial Conservation Division, Department of Conservation Services, Bermuda Government. (2011).
The following 0 contacts offer information an advice on Corvus brachyrhynchos
MO
Corvus brachyrhynchos American Crow, Cuervo americano, Corneille d'Amérique
Date assessed
2021-11-10
Year published
2022
Eicat category
MO (Moderate)
Justification for EICAT assessment
The American crow preys on the eggs and chicks of White-tailed Tropicbirds on Bermuda. This predation is likely to be causing declines in populations of the native species (Madeiros 2011).
Confidence rating
Medium
Mechanism(s) of maximum impact
Predation
Countries of most severe impact
Bermuda
Description of impacts
American crows prey on the eggs of white-tailed tropic birds on Bermuda. Crow predation rates of white-tailed tropicbirds varies across years on offshore island sites on Bermuda.
Assessor
Tom Allmert; Thomas Evans
Contributors
Reviewers
EICAT authority
Recommended citation
Tom Allmert, Thomas Evans (2025). Corvus brachyrhynchos. IUCN Environmental Impact Classification for Alien Taxa (EICAT).