Field notes, v601
Page 239
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
15. Parus bicolor Mch 15. 1 mi E College Station tlee tlee tlee song continued; fight between [2] birds neither singing while song went on (three females?) 9:06 sequence broken as I approached too close 9:08 song teree in 3's from both birds now 20 yards apart about due S of white house, E singer just E of powerline. Song peta peta from N of house all this while Pair of chichadees added confusion Mate of E singer foraged silently on branchlets even of shrubs within a yard of the ground. Silence at 9:12. Resumed a minute later. Bird of W pair flew to oak where E (?) foraging for E or sang teree & W bird flew tow. The pleur pleur melodious given by bird ank ank ank ank by only one bird of each pair after exchange of this call E pair retired to salse 40 feet to E at 9:16. - See see veet out veet vehemently given by one E bird other see see see tiddle or was this a chichadee? - W bird sang peta peta still at 9:20 as it flew W - there followed a melee involving four birds the tee pleur note being given frequently as actual combat took place. I couldn't tell which birds were giving this, whether one or two member of a couple of fighters. The birds when paused acted alert with feathers fluffed out (on head at least). They switched their tails and fluttered their wings (I saw both contestants do this once). While all four birds were involved my impression was that any one bird