Originally Posted by MarkJ
We need a good book on all these.
For seabirds Mark, a really excellent book is "Seabirds, an Identification Guide" by Peter Harrison but unfortunately out of print for many years now. When written it covered all of the world's then known seabirds and is done with small paintings rather than photographs so each of the main distinguishing features can be shown as well as the juvenile, etc forms.
It is available second hand (eg Amazon) but because of its merit it is quite expensive (over USD100 for hardback even though not a big glossy type of book unless lucky enuff to find one in a small store not knowing its real value). Maybe you have a pressie giver who can leap to that
Harrison did a later photograph based book, "Seabirds, a Photographic Guide" I think its called, but that is a much inferior book and I personally would not bother with it.
We are due to pass through Cook Strait tommorrow and given there have been gales through there all week we are looking forward to perhaps some albatross soaring displays.