I saw the rufous-collared Sparrow in Georgetown beginning at 10:20 and heard it sing for 15 minutes. It was singing from behind the Buckley Garage at the southeast corner of 7th and Rose and in the yard of the gray and blue house at the northwest corner of 8th and Rose. It had two song types. The one used most was a series of three whistled notes with the second lower and the third between the other two. It also sang with a very short trill-like 3 notes follwoed by the same whistled note at the beginning of the other song. I listened to several recordings on XenoCanto. There were 4 songs from Costa Rica and it only matched the one by Daniel Lane. Also matched many recordings from Colombia and Panama.Did not match any I listened to from Vanezuela, Ecuador, Peru, Bolivia, or Chile. Norm Erthal Arvada
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