Scofield's bird

Albatrosses, Petrels and Shearwaters of the World (Princeton Field Guides)
$29.95
One of the trickiest groups of birds to identify are the tubenoses; those birds seen mainly at sea, like the albatross, petrels, shearwaters, etc. Add to the that confusion are the recent many taxonmic changes. But this book offers detailed variations of species, the most recent taxonomy, as well as lots of extra info on feeding, behaviour and likely range maps. This book is fairly pricey for it's size if you buy it in NZ or Australia, but worth it if you are spending some time on the southern seas. It definitely helped me out for ID and pointers for these ocean going birds in my "Ocean Surfaces" book.
Damon Ramsey, author of "Ocean Surfaces of Australasia"