The Black-browed Albatross Thalassarche melanophris is the most frequently recorded albatross in the Western Palearctic (Snow & Perrins 1998). The ability to determine the age of birds in the field can be helpful when attempting to track individuals over time and between sites, thus enabling greater precision when evaluating records and establishing patterns of occurrence. This short p

...

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now