Notes on the Breeding of Long-eared Owl. 
May 18, 1393 N. A. Francis and I found a long-eared owl's nest in 
a cedar swamp on the boundary line between Brookline and West 
Roxbury. The nest contained four eggs almost hatched, two being 
actually chipped. The nest was built in a cedar about 25 feet up. 
The set is now, or was, in the collection of N . A. Francis. 
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May 3, 1896, nest in se swamp . found by F. H. K. placed about 
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20 feet up r in a white pine f contained four eggs hatching, and one 
young bird. 
May 28, 1897, nest in same swamp found by F. H. K. placed 
between 25 and 30 feet up in a white cedar, contained three fresh 
eggs. 
April 1, 1897 the above nest contained five fresh eggs, which 
are now in the collection of F. H. K. 
The above notes are, I imagine, all that I have that will be 
of use to you' but it is of interest to note that on April 24, 
just 23 days after I took the above set I again visited the swamp 
and found that these owls had. laid four eggs in the last year's 
nest and that these eggs looked to be pretty well set. On May 8, 
1897 ( but 37 days after I took the above set I again visited the 
nest and found three birds hatched and the remaining egg chipped. 
I have no definite idea just how long it takes aX owl's egg 
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to hatch, but always supposed it took about 23 days. I am not 
quite sure at this writing, not having looked the matter up in my 
