Parasitic Jaeger (Stercorarius parasiticus)


Also known as Arctic Skua

Figure 1 Composite figure of a single bird videotaped at sea NW of Bodega Head, California on 25 August 1999 during a Shearwater Journeys trip. Copyright of Angus Wilson© 1999


Where and When

Photographs on the web

Small series of a probable Parasitic Jaeger seen at Jekyll Island, Georgia USA. Photos and text by Jim Flynn. Aging remains uncertain, but thought to be molting into second-basic plumage.

Probable basic plumaged Parasitic. Taken off Louisiana in June. Photo by Dave Patton.

Adult in flight Taken in Churchill, Manitoba, Canada by David Stimac.

Pair of adults Beautiful shot taken in Churchill, Manitoba, Canada by David Stimac.

Adult in alternate plumage flying Photograph by Monte Taylor, taken in Barrow Alaska.

Ventral view of adult From the Birds of Foula, Shetland web site


Kitson, AR. (1979) Separation of adult pale-phase Arctic and Long-tailed Skuas. British Birds 72(3): p120-121.

van IJzendoorn, EJ and de Heer, P. (1981) On identification of immature Arctic and long-tailed skua. Dutch Birding 3(1) 1981: 10-12.

Olsen, KM. and Christensen-S. (1984) Field identification of juvenile skuas. British Birds 77(9): p448-450.

Jonsson, L. (1984) Identification of juvenile pomarine and Arctic skuas. British Birds 77(9): p443-446

Stawarczyk, T. (1986) Identification of skuas in juvenile and post-nuptial plumages. Notatki Ornithologiczne 26(3-4): p177-191.

Olsen, KM. (1986) [Young skuas can be identified.] Fugle 6(4) 1986: 13-15.

Johnson, DP. (1986) Jaeger identification. Loon 58(3) 1986: p141-142.

Malling Olsen, K. (1987) Identifying juveniles of the smaller skuas. in Grant, P.J., Sharrock, J.T.R., Taggar, S. & Shirihai, H. International bird identification. Proceedings of the 4th International Identification Meeting Eilat 1st - 8th November 1986. International Birdwatching Centre Eilat, P.O.B. 774 Eilat, Israel. 1987.

Davenport, DL. (1987) Behaviour of Arctic and pomarine skuas and identification of immatures. British Birds 80(4): p167-168.

Sherony, D.F. and K.J. Brock (1997) Jaeger migration on the Great Lakes. Birding 29(5): 372-385.

Turner, JE. (1987) Flight identification of skuas. Hilbre Bird Observatory Report 1987: 46-49.

Garcia-Sanchez, E. (1989) Sobre el estado de muda de un pagalo parasito Stercorarius parasiticus. Giam (Grupo Iber Aves Mar) Bol (No. 6) 1989: p5.

Copyright © 2002 All rights reserved. Angus Wilson
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