SOUTHEASTERN CARIBBEAN BIRDS
PHOTO GALLERY
Trinidad & Tobago Field Naturalists' Club    Southeastern Caribbean Bird Alert    Trinidad & Tobago Rare Bird Committee

IDENTIFICATION ESSAY

Sandwich Tern (Sterna sandvicensis acuflavida) and Cayenne Tern (S.s.eurygnatha): Page 5 of 7
    
Page 1: Virgin Islands (variation)
    
Page 2: Virgin Islands (hybridisation)
    
Page 3: Aruba (hybridisation)
    
Page 4: Tobago
     Page 5: Brazil
    
Page 6: Argentina
    
Page 7: Argentina

The photos below were taken from a colony at Ilha Escalvada, Espírito Santo, Brazil, illustrating variability not only in bill coloration but in the colour of the eggs and nestlings. Note the incubating adult resembling a Sandwich Tern near lower right corner. Photos © by Cesar Musso.