title: The nature of the stay of the Manx Shear-water on the Black and Azov seas
abstract: The Manx Shearwater (Puffinus yelkouan) nests on the Mediterranean sea.Its breeding begins at the age of 5-6 years.The nesting period usually begins in March-April, but in January-February the birds concentrate at their colonies.In the colonies, they are exclusively nocturnal, and they often scream.The female and male hatch the clutch for 48-52 days, changing each other after 3-5 days.Nestlings begin to hatch from the beginning of May to the middle of June, and their feeding lasts about 60-68 ni
journal: “Branta” Transactions of the Azov-Black Sea Ornithological Station