Recommended citation: Global Invasive Species Database (2024) Species profile: Corvus brachyrhynchos. Downloaded from http://iucngisd.org/gisd/species.php?sc=2042 on 23-11-2024.
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 (2024). Corvus brachyrhynchos. IUCN Environmental Impact Classification for Alien Taxa (EICAT).