wikipedia. 2006-03-03 17:41 Sabine's Sunbird 280×210×8 (10899 bytes) [[Light-mantled Sooty Shearweater]] *taken by Eric van Poppel & Caroline Don ([[User:Wildlifelands]]
total abundance of birds, abundance of certain birds (Shearwater-Petrel-Albatross group, Tropicbirds, etc.), and abundance of flocks. At sea survey chart