Displacement of a large double-crested Cormorant, Phalacrocorax auritus, colony following human disturbance

Double-crested Cormorants (Phalacrocorax auritus) breeding at a Prince Edward Island colony, the largest in northeastern North America, shifted their nesting location to a nearby island after springtime shooting at the colony. Post-shift numbers at the new site (4525 nests) were 92% of the previous combined population of the two colonies. Clutch size and hatching date were similar before and after the move. Disturbance-induced displacements of seabird colonies are rare; this shift may have been caused by perturbation during a sensitive period prior to laying.PT: J; CR: AEBISCHER NJ, 1995, IBIS, V137, P11 BUCKLEY PA, 1992, WILDLIFE 2001 POPULA, P563 CAIRNS DK, 1987, BIOL CONSERV, V40, P1 CUTHBERT FJ, 1988, AUK, V105, P339 DUFFY DC, 1995, COLON WATERBIRD, V18, P25 EVANS RM, 1982, IBIS, V124, P491 EWINS PJ, 1994, J GREAT LAKES RES, V20, P761 FAIRWEATHER JA, 1995, COLON WATERBIRD, V18, P30 HARRIS MP, 1996, BIRD STUDY 2, V43, P134 KROHN WB, 1995, COLON WATERBIRD, V18, P99 LEWIS HF, 1929, NATURAL HIST DOUBLE LOCK AR, 1994, GAZETTEER MARINE BIR SIEGELCAUSEY D, 1986, AUK, V103, P230 SIEGELCAUSEY D, 1990, CURRENT ORNITHOLOGY, V7, P285 SOUTHERN LK, 1982, AUK, V99, P328; NR: 15; TC: 3; J9: CAN FIELD-NATUR; PG: 3; GA: 151UTSource type: Electronic(1