Tag: Sterna caspia

Factors Affecting Chick Provisioning by Caspian TernsNesting in the Columbia River Estuary

Caspian Tern (Sterna caspia) Science Article 1 abstract We investigated factors affecting chick provisioning by radio-tagged Caspian Terns (Sterna caspia)nesting in a large colony on East Sand Island in the Columbia River estuary during 2001. Caspian Tern predationon juvenile salmonids (Oncorhynchusspp.) in the estuary prompted resource managers to relocate ca. 9,000 pairs ofterns nesting on […]


Caspian Tern (Sterna caspia) Science Article 2 abstract Nesting distribution, age-related seasonal movements, survivorship, and mechanisms of population expansion in Pacific Coast Caspian Terns (Sterna caspia) were examined primarily through analysis of 412 recoveries of birds banded as juveniles between 1935 and 1980. Since the beginning of this century, the population has shifted from nesting […]

Foraging Patterns of Caspian Terns and Double-crested Cormorants inthe Columbia River Estuary

Caspian Tern (Sterna caspia) Science Article 3 abstract We examined spatial and temporal foraging patterns of Caspian terns and double-crested cormorants nesting in the ColumbiaRiver estuary, to potentially identify circumstances where juvenile salmonids listed under the U.S. Endangered Species Act mightbe more vulnerable to predation by these avian piscivores. Data were collected during the 1998 […]

Caspian Tern (Sterna caspia)

[order] CHARADRIIFORMES | [family] Laridae | [latin] Sterna caspia | [UK] Caspian Tern | [FR] terne caspienne | [DE] Raub-Seeschwalbe | [ES] Gaviotin de Pico Rojo | [NL] Reuzenstern Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Thalasseus caspia Hydroprogne caspia Worldwide widespread except SA Physical charateristics The largest of the […]