Cabot's Tern (Thalasseus acuflavidus) [XC336205]
by David Darrell-Lambert from Linhares, Linhares, Esp\u00edrito Santo, Brazil (flight call)
Cabot's Tern (Thalasseus acuflavidus) [XC278930]
by Paul Marvin from Jetty Park, Port Canaveral, Florida, United States (flight call)
Subspecies
Considered by some authors to be a subspecies of Sandwich Tern (Thalasseus sandvicensis).
The following 2 subspecies are recognised:
acuflavidus (Cabot, S, 1847) - Widespread coasts from Virginia to French Guiana, Argentina. Considered by some authors to be a subspecies of Sandwich Tern (Thalasseus sandvicensis).
eurygnathus (Saunders, H, 1876) - Islands off Venezuela and the Guianas, northern and eastern South America. Considered by some authors to be a subspecies of Sandwich Tern (Thalasseus sandvicensis).