Wiktionary
whalebird
n. Any of several species of large Antarctic petrels, especially ''Pachyptila turtur'' (the blue petrel) and ''Pachyptila desolata''.
Usage examples of "whalebird".
They had increased in number quite remarkably these last days - skuas, whalebirds, albatrosses and petrels of different kinds, sheathbills, terns - and he had noticed that they appeared to be travelling to or from some fixed point to the north.