. The Oölogist for the student of birds, their nests and eggs . ed two eggs which I left. OneOwl was sitting and I saw the otherclose by. On April 30th, I returnedand took a set of three eggs. Thenest was about forty feet up in thecrotch of a Balsam Poplar and un-like the other nests had been newlybuilt up with twigs, by the Owls. It was lined \\ith back strips anda few feathers and well cupped. Thebird remained in the vicinity and itsmate could be heard at a distance inthe timber. A rather musical whistlewas uttered frequently like oo-ih,sometimes very softly, and at othersquite loudly. They
. The Oölogist for the student of birds, their nests and eggs . ed two eggs which I left. OneOwl was sitting and I saw the otherclose by. On April 30th, I returnedand took a set of three eggs. Thenest was about forty feet up in thecrotch of a Balsam Poplar and un-like the other nests had been newlybuilt up with twigs, by the Owls. It was lined \\ith back strips anda few feathers and well cupped. Thebird remained in the vicinity and itsmate could be heard at a distance inthe timber. A rather musical whistlewas uttered frequently like oo-ih,sometimes very softly, and at othersquite loudly. They also hooted sev-eral times, a deep booming Who-oo-oo-oo. In Fishers Hawks and Owls ofthe United States, it is stated Thenote of the owl is said to be a tre-mulous vibrating sound somewhat re-semhling that of the Screech must plead ignorance to the noteof the Screech Owl, but I have many Great Gray Owls bothin the breeding season and out of itand have never heard this tremulousvibrating whistle. A. D. Henderson,Belvedere, Alberta, Canada ^^ 128 tHi 6dL66l6t
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Keywords: ., bookcentury1800, bookdecade1880, bookidologistf, booksubjectbirds
