Identifcation of flying Chlidonias Terns in breeding plumage

 Looking at field guides like „ Collins Bird Guide“ from Peter Grant, Dan Zetterstrom, Lars Svenson and Killian Mullarney the ID look quite simple. But even in the breeding plumage Chlidonias – or Marsh – Terns can cause some headache identifying in the field. Then even the Whiskered Tern (Chlidonias hybridus) can be confused with… Continue reading Identifcation of flying Chlidonias Terns in breeding plumage

Identification of Sternula Terns in Asia/Africa

When you are going to eastern Arabia in spring, you have good chances to see (and compare) 2 small terns of the genus Sternula. Sternula is a genus of small white terns, which is often subsumed into the larger genus Sterna. Saunder’s Tern, Sternula saundersi, was formerly considered to be subspecies of Little Tern but… Continue reading Identification of Sternula Terns in Asia/Africa