Category: Alcidae

Competition for breeding sites and site-dependent population regulation in a highly colonial seabird, the common guillemot Uria aalge

Guillemot (Uria aalge) Science Article 7 abstract The hypothesis of site-dependent population regulation predicts that birds utilize available nesting sites in a pre-emptive (ideal despotic) manner, leading to density dependence in heterogeneous habitats as poorer sites are used at higher population densities. At small population sizes adaptive site choice protects populations against fluctuations (the buffer […]

Long-term study of mortality in thecommon guillemot in the Baltic Sea

Guillemot (Uria aalge) Science Article 4 abstract This study is based on a uniquely large and long-term data set ofringed common guillemots (Uria aalge) in the Baltic Sea. We analysedrecoveries of 42,824 common guillemots ringed in Sweden from1912-1998. Most of the birds were juveniles ringed on the island ofStora Karlso in the southern Baltic proper. […]

First Record of the Great Auk (Pinguinus impennis) from Labrador

Great Auk (Pinguinus impennis) Science Article 2 abstract Recent archeological investigations undertaken by Bryan Mawr College and the Smithsonian institution along the Torngat Mountain coastline of northernmost Labrador have produced the first documented evidence of the extinct Great Auk, Pinguinus impennis, from the Labrador Peninsula. RICHARD H. JORDAN AND STORRS L. OLSON, Auk, Vol. 99 […]

An Attempt to Determine the Prey of the Great Auk

Great Auk (Pinguinus impennis) Science Article 3 abstract The flightless Great Auk (?inguinus impennis), the largest of all Recent Alcidae, was exterminated in 1844 (Greenway 1958), and no one who can properly be called a naturalist ever encountered the bird inlife. As a consequence, virtually no details are known of its behavior or ecology. One […]

NOTICE OF THE REMAIN’S OF THE GREAT AUK, OR GARE-FOWL, (ALGA IMPENNIS, LINN.), FOUND IN CAITHNESS; WITH NOTES OF ITS OCCURRENCE IN SCOTLAND AND OF ITS EARLY HISTORY

Great Auk (Pinguinus impennis) Science Article 7 abstract As one of the editors of the ‘ Proceedings’ of the Society, I prepared the list of the various donations for the meeting of the Society held in January 1867 (‘Proceedings,’ vol. vii.), and gave a rough summary of the collection of stone, bone, and metal implements,also […]

THE GREAT AUK, PINGUINUS IMPENNIS (L.) IN GREENLAND

Great Auk (Pinguinus impennis) Science Article 1 abstract This paper presents all available ‘archaeozoological, ethnohistorical, and historical evidence on the Great Auk, Pinguinus impennis (L.), in Greenland Substantial new contributions are: ( 1) the presentation of 132 Auk bones from seven archaeological sites, and ( 2) a translation of Otto Fabricius’s original handwritten notes on […]

Colony attendance in a Black Guillemot colony inWest Greenland

Black Guillemot (Cepphus grylle) Science Article 5 abstract Colony attendance of Black Guillemots Cepphus grylle was studied at a colony on Skarveo in WestGreenland. Observations were conducted in the post hatching period by scan sampling birds in and near the colonyevery 30 minutes throughout five days. The rhythm of colony attendance varied diurnally, peaking in […]