Seabird observation from the South and Central Atlantic Ocean, Antarctica to 30°N, March-April 1988 and 2000
Atlantic seabirds , Volume 3 - Issue 1 p. 1- 14
Birds were counted in the early austral autumn (mid-March to late April) during two cruises from Ushuaia, Argentina, north to 30°N via the Antarctic Peninsula, passing South Georgia, Tristan da Cunha, the Cape Verdes and other islands. Records are summarised as mean number of each species seen per hour within 2° or 4° latitudinal zones. Pelagic birds occurred abundantly north to Tristan da Cunha, whereas they were scarce or very scarce during the remaining part of the two trips.
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