Argentina field notes, v1505
Page 439
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Transcription
1974 Journal (10-11-2-1) Farmhouse Monte, Estancia Medaland, Ptdo de Madariaga, Pcia de Bs. Aires, Argentina 7 September (cont'd) Species seen or heard Furnarius rufus (building owans) Mimus saturninus Rhynochus rufescens (hard aside monte) Cinclodes fuscus Turdus rufiventris singing Anao flavirostris calling Anumbus annumbi (building nests) Poliopitla dominica Elanus leucurus M. Iango chimango 2,plunging Leptasthenura platensis (singing) Molothrus badius Polyborus plancus. Hymenops perspicillata Molothrus ruficollis Vandellus chilensis Pitangus sulphuraceus calling Wolothrus bonariensis Pluvialis dominica Machetornis rixosus Bruchidius rixosus Columba picagure — nest w/one egg in low conifer 2m off ground many other nests further Leptofla ferravuxi — nests in Eucalyptus Satrapa icterophrys Andryamphus hispidoricensis Serpophaga subcoriolata singing Teothyptes equestralis Zemaidae auriculata Phytoma rubra (♀) Bontrichia capensis singing Guira guira Tachycineta leucorhoa singing Sicalis flaveola singing Chrysopila melanoleuca Troglodyte aedan singing Spinus magellanicus singing Passer domesticus (10,1) Farmhouse work for SE to coast (~30-15), Estancia Medaland, Ptdo de Madariaga, Pcia de Bs. Aires, Argentina 1305 left camp roughly paralleling the SE running fence which skirts the edge of the monte. I walked ~ 100-400 m to the N of the fence for 3.5 km, when the fence ends. Then I continued on another ~3.5 Km until reaching the Atlantic coast. Then I reached the coast at 1530, remained for 0.5 hrs, and then returned over the same route, arriving at the monte at 1815. During the afternoon a strong N-NW wind blew continuously, and extensive cloud-cover (then) came in from the S-SW, developing from 0% to 70% while I was out. Temp ~ 12°C. See camp list of 25 August for list of spp seen in a comparable (but not too extensive) walk through most of the flatlands visited Today. Leaving the monte one enters a ~2000 wide strip of pampas grass with occasional hollows which during wetter years would now be water filled (they have salamons for rule). This changes abruptly to a gorge in which Spartina grows on higher sandy ground between lowland swamps. The swamps are extensive, usually only 10-30 m wide, but sometimes over 500m long (N-E S axis). They are mostly tide, with some large patches of open water. New, however, they are largely dry. Only a few far to the SE remain with