TY - JFULL ID - 50901739 TI - Proceedings AU - Colonial Waterbird Group (U.S.). AU - Colonial Waterbird Group (U.S.) PY - 1977 SN - 23263989 PB - [DeKalb, Ill.] : Colonial Waterbird Group, DB - UniCat KW - Water birds KW - Colonial birds KW - Bird populations KW - Bird populations. KW - Colonial birds. KW - Water birds. KW - Aquatic birds KW - Waterbirds KW - Aquatic animals KW - Birds KW - Clump-nesting birds KW - Clumped nesting birds KW - Colonial breeding birds KW - Colonial nesters (Birds) KW - Colonial nesting birds KW - Colonially breeding birds KW - Colonially nesting birds KW - Colony nesters (Birds) KW - Colony nesting birds KW - Nest clumping birds KW - Vertebrate populations UR - https://www.unicat.be/uniCat?func=search&query=sysid:50901739 AB - ER -