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(2) [[underlined]] BQ [/underlined]], Nov. 15, 1962, II breasted Warbler) feeding in some bushes Song continues off & on for the next half hour. Once a bird sings while very near mixed flock of flycatchers and warblers. This is [[underlined]] not [/underlined]] usual. As far as I can tell, songs are uttered only by birds separated from their mates (or other companions of their own species) None of the birds I have been able to see singing have been in special postures or have performed special movements. 6:50 am. Burst of song composed of disyllabic notes. Might be transcribed as "zee-huh zee-huh zee-huh..." I shall call songs composed of monosyllabic notes "MS", and songs composed of disyllabic notes "DS". 7.00 am. A single bird, feeding apparently alone in bush, utters occasional "Tseeet" notes. Apparently "answered", with same notes, by another bird in bushes a considerable distance away. 7:10. More DS's, same as before. Each DS usually composed of 4 to 8 doublets. Sometimes (perhaps usually) terminal note is a simple "Zhuh" instead of a doublet. 7:20. Looking at a bush on the side of the Lab. 2 BQ's in it. Chasing one another. This chasing accompanied by brief series of loud hard "Tsit"s. Sometimes accelerated into semi-R. Each "R" probably composed of no more than 3 or 4 notes. All or most "R"s followed, immediately, by hoarse HAC like note!! One of the birds eventually flies away. 7:35. Again see a bird uttering DS's in intervals of feeding each DS "zhee-hah zhee-hah zhee-hah zhah" No special