Totipalmate
Having all the toes connected by webs instead of the more usual arrangement among aquatic birds where the hallux is free of webbing. In birds with totipalmate feet this 'hind' toe point forward like the others. The only order of birds found in the British Isles and having this arrangement is the Pelecaniformes, containing the Gannet Sula bassana, Cormorant Phalacrocorax carbo and Shag P. aristotelis.From Peter Weaver's Birdwatcher's Dictionary
Copyright © 1981 by Peter Weaver