ML583567911
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Following up on H. Johnson’s report of a CWWI nest. As luck would have it, I was in Orland when I saw the report of a presumed CWWI nest. I traveled to the site and was surprised to flush not one, but two nightjars from the pathway, both making low clucks while moving into cover. The closer bird was more readily seen as it had been roosting directly in the path and flew through a small clearing before descending into cover downhill. It was a dark rufous morph male Chuck-will’s-widow (large, blocky-headed nightjar with long pointed wings and conspicuous white edges along its tail feathers). The second bird was less well seen as my attention was split between observing the flight direction of the male chuck while trying to keep tabs on the locations from whence the birds had flushed. They were only 1-2 meters apart when roosting and appeared to have both flushed from the ground. I delicately approached and made scans of the area and below vegetation being careful to map every step while avoiding touching anything in the immediate area, but was unable to locate a nest site containing eggs. The male remained highly vocal during this period clucking and occasionally singing (indeed, he sang well after sunrise, sometimes for several minutes). I observed him moving between singing perches on 3 occasions, each time flying low through the trees and landing in living trees with dense foliage. Occasionally he vocalized with a low cluck-growl series (“cluck, cluck, cluck, groo-ah, groo-ah”) from other unseen perches. He then went silent for a period of 20-25 minutes. Perhaps, of note, this was the period with the brightest sunshine as the skies were shifting between patchy clouds and overcast. Just as I was about to depart, he clucked again just uphill before moving north within cover to begin singing again with variable (5 seconds to 3 minutes) breaks between songs. During a stretch of continuous singing, a second bird was heard vocalizing in a low depression surrounded in glacial erratics between my vantage and the still singing male. This bird gave a short series of a “cluck-growls” akin to the alternate vocalization of the male followed by two lower, growl-like “aug” notes before falling silent again. The male was observed flying and presumably landing on the ground in this same general area beside a rotting birch log several minutes later (where he landed exactly was obscured by a boulder). Shortly thereafter, I heard both birds vocalizing again simultaneously 15 minutes later. The one bird vocalized directly overhead while the second bird gave soft clucks from the opposite side of a boulder in same general area where it was heard was first heard. Also of interest, the singing male was observed at one point being scolded by two Hermit Thrush while perched on a young, arched over sugar maple which caused it to change position.
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