Common Tern Sterna Hirundo In Winter Plumage Namibia Stock Photo There was some uncertainty whether sterna hirundo should apply to the common tern or the arctic tern as the species are very similar and both occur in sweden. in 1913, the swedish zoologist einar lönnberg concluded that the binomial name sterna hirundo applied to the common tern. The common tern (sterna hirundo) is one of germany’s farthest migrating bird species. ringing studies have shown the use of the east atlantic flyway, and according to their main wintering areas at the western and southern african coasts, german and european common tern populations have been divided into two allohiemic groups.
Premium Photo Common Tern Sterna Hirundo Common terns arrive from the middle of april, departing again in late summer for wintering grounds that stretch south from the coast of spain and around africa's western seaboard. Both species of tern rarely contacted salt water during the breeding season, except when bathing or plunge diving, but in winter they spent several hours each day resting on the sea surface. Migration routes and wintering areas of 24 common terns from riether werder tracked with light level geolocators. Housand pairs (del hoyo et al. 1996). palearctic breeders migrate south after breeding between august and october, returning to the breeding grounds in arch or april (del hoyo et al. 1996). the species may moult on arrival in its the wintering grounds, when it may become vulnerable to human explo.
Common Tern Sterna Hirundo In Winter Plumage Namibia Stock Photo Migration routes and wintering areas of 24 common terns from riether werder tracked with light level geolocators. Housand pairs (del hoyo et al. 1996). palearctic breeders migrate south after breeding between august and october, returning to the breeding grounds in arch or april (del hoyo et al. 1996). the species may moult on arrival in its the wintering grounds, when it may become vulnerable to human explo. Species migration maps show the movements of a single species as it travels throughout the hemisphere each year. the following partners contributed to the development of this map. requests for data should be directed to the contributing data holder or organization. The common tern (sterna hirundo) is one of germany’s farthest migrating bird species. ringing studies have shown the use of the east atlantic flyway, and according to their main wintering areas at the western and southern african coasts, german. To investigate the migratory behavior of common terns from east germany, we fitted 40 common terns breeding in a colony at the german baltic coast with light level geolocators. Palearctic breeders migrate south after breeding between august and october, returning to the breeding grounds in march or april (del hoyo et al. 1996). the species may moult on arrival in its the wintering grounds, when it may become vulnerable to human exploitation (van halewyn and norton 1984).
Comments are closed.