Unobtrusive Methodology to Obtain Estimates of Colony Size of the Double-crested Cormorant Phalacrocorax Auritus Breeding on Pokeshaw Rock, Chaleur Bay, New Brunswick, 2006


Book Description

"Pokeshaw Rock (470 47' N 65015' W) is an inaccessible "sea stack" located along the south shore of Chaleur Bay about 20 km west of the town of Caraquet, New Brunswick, Canada. The Double-crested Cormorant Phalacrocorax auritus colony appears to have developed sometime after 1928; being first recorded in 1966. Seven surveys and/or estimates conducted from 1966 to 2006 have reported from 100 to 619 nests (mean 358, S.D. 219). The cormorant colony situated at the top of Pokeshaw Rock was remotely surveyed using an unobtrusive methodology on 6 June 2006. The maximum number of nests of Double-crested Cormorant in the colony was 577 (95% CI, range from 246 to 874). The ratio of observed adult birds versus nests (on both the long and narrow axis of the island) were both significantly correlated (R2 = 0.853, n=ll, P




Effects of the Nestucca Oil Spill on Seabirds Along the Coast of Vancouver Island in 1989


Book Description

On 23 December 1988, the oil barge Nestucca was damaged off Gray's Harbour, Washington and began leaking, spilling about 875,000 litres of Bunker C oil that drifted northwards, leading to widespread oiling of beaches along the coasts of Washington and Vancouver Island and the heavy mortality of seabirds. This report documents the impact of the Nestucca spill on seabirds based on the data collected from British Columbia. The report documented the numbers, types, degree of oiling, and state of decomposition of the birds recovered on Vancouver Island; compared the species composition of the oiled birds with that of offshore and inshore populations wintering off southwest Vancouver Island; estimated the total number of oiled birds to land on Vancouver Island, taking into account the large numbers of carcasses not tallied; estimated the total at-sea mortality represented by the birds recovered on Vancouver Island, taking into account the losses of carcasses at sea; compared the Nestucca victims with normal seabird mortality off Vancouver Island; and assessed the impact of the spill on predatory and scavenging birds on Vancouver Island.




The Canadian Bird Bander's Training Manual


Book Description

The Canadian Bird Bander's Training Manual and the companion, The Instructor's Guide have been designed to complement each other. Both are the result of the collective work of many experienced banders and trainers from Long Point Bird Observatory. The motivating factors in the production of these manuals have been to ensure the safety and welfare of the birds involved in any banding project, as well as to ensure that banders gather accurate and complete data.