Sympatrically-breeding congeneric seabirds (Stercorarius spp.) from Arctic Canada migrate to four oceans

Autumn-Lynn Harrison, Paul Woodard, Mark Mallory & Jennie Rausch
Polar systems of avian migration remain unpredictable. For seabirds nesting in the Nearctic, it is often difficult to predict which of the world’s oceans birds will migrate to after breeding. Here we report on three related seabird species that migrated across four oceans following sympatric breeding at a central Canadian high Arctic nesting location. Using telemetry we tracked pomarine jaeger (Stercorarius pomarinus, n=1) to the Arctic Ocean to the western Pacific Ocean; parasitic jaeger (S....
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