Viewing page 48 of 74

This transcription has been completed. Contact us with corrections.

[[circled]] 47 [[/circled]

Tangara, Mar. 25, 1961, II. 

[[left margin]] 3 grey lines and grey asterisks in a vertical line [[/left margin]]

They may have been SN, or BC, or "zreee"s (see below). If they were BC, the incident would suggest that BC may be appeasement.

Immediately after this incident, one of the Plain-colored [[?]] Tanagers landed right beside another. The landing bird immediately went into a distinctive posture, with tail raised (I shall call this component "TV") and perhaps a slight indication of St. Wings  slightly drooped, but not spread, and certainly not Q'd. At the same time, the bird in this TV-St posture uttered a CN Trll

[[image - drawing/sketch of a bird with annotations]]

[[Note by tail of sketch]] Posture with CN Trll

[[Note pointing to beak on sketch]](I am not sure how widely the bill is opened during CN Trll's.)

[[left margin]] grey vertical line of asterisks [[/left margin]]

Another thing I noticed yesterday was that birds of this species utter CN Trll's quite frequently when perched as well as when flying. And not all the CN Trll's uttered while perched are followed immediately by flight.

[[left margin]] 3 grey lines and a grey vertical line of asterisks [[/left margin]]

Yesterday afternoon, a snake tried to get two nestling Sangre de Toros[[?]] (see today's notes on Rhamphocelus[[?]]). The parent Sangres[[?]] became very excited and vocal, and attracted a lot of birds of many other species. Sort of a low intensity mobbing reaction. A couple of Plain-coloreds were attracted along with the others. All they uttered were a very few CN Trlls.

[[left margin]] a large grey S or perhaps a small grey squiggle [[/left margin]]

This morning I watched the A birds intensively for quite a long time.

[[left margin]] 3 grey lines and a grey vertical line of asterisks [[/left margin]]

One bird, presumably the ♀ [[female]] did most of the building. But always accompanied by the other bird, presumably the ♂ [[male]] (I shall call these "the

Transcription Notes:
Don't believe the notation to be "plain"-colored Can't decipher his annotation for the bird's call, using "CNoTrill". This author's cursive T is fronted by a loop which can resemble an O. Found Rhopornis Ardesiacus in searching bird species. Also found Ramphocelus. Langre De Toros? Langrede Toros? Can't seem to find further information to help confirm. *Found that Sangre de Toros is a name for a type of tanager in Panama Tangres and Langres seem very similar, but it might be closer to langres, as the author writes their t's with a clear cross, rather than a smooth flow of a f, s, or l.