Volume 50, No. 2

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Successful breeding by Black-legged Kittiwakes Rissa tridactyla at the only colony along Canada's Pacific coast


1Science Faculty, Coast Mountain College, 353 5th Avenue, Prince Rupert, British Columbia V8J 3L6, Canada (
2Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
3Wildlife and Landscape Science, Environment and Climate Change Canada, Delta, British Columbia, Canada


HART, K.A., WRIGHT, K.G., PATTISON, V. & HIPFNER, J.M. 2022. Successful breeding by Black-legged Kittiwakes Rissa tridactyla at the only colony along Canada's Pacific coast. Marine Ornithology 50: 115 - 117

Received 25 January 2022, accepted 03 February 2022

Date Published: 2022/10/15
Date Online: 2022/07/22
Key words: British Columbia, Black-legged Kittiwake, Rissa tridactyla, fledgling


The Black-legged Kittiwake Rissa tridactyla is a widely distributed and well-studied northern hemisphere seabird. Authoritative publications document the existence of breeding colonies in Canada's Arctic and Atlantic regions but not in the Pacific region. We visited the small (ca. 50 pairs in recent years) kittiwake breeding colony at Holland Rock, British Columbia, in July and August 2021, and documented what we believe to be the first record of successful breeding at this site. Previous records have documented successful breeding no further south than 58° latitude in Alaska, ~600 km to the north, making Holland Rock the southernmost colony in the eastern Pacific.


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