El Salvador field notes, v4515
Page 7
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
markings. The secondary wing coverts are tan or brown color. The birds skim about like swallows or bats and are never seen to light altogether they run along the surface and feed on the refuse from the ship. A large group of them fluttering on the surface looks at distance like mud swallows gathering mud. The wings are fluttered high in the air as the they flap jabble with their bills and paddle with their feet. Species? Towards evening we saw the first albatross + (Black-footed?). There were two birds which circled and skimmed the water pattern. June 21 Sun. Out of sight of land there was little to note except the everflying flock of Petrels and two or three "Gooners". The gulls were gone this morning. The Petrels and Gooners came down to the ship today possibly because of that rougher weather and windswept. There is a great deal of individual variation in both species probably due some to age. The Petrels appeared some as black and others quite light brown and the light-colored wing patch also