File:The Oölogist for the student of birds, their nests and eggs (1916) (14565135600).jpg

Identifier: ologistforstud331916latt (find matches)
Title: The Oölogist for the student of birds, their nests and eggs
Year: 1886 (1880s)
Authors: Lattin, Frank H
Subjects: Birds Birds
Publisher: Albion, N.Y. : Frank H. Lattin
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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nths, the Hawks migrateto their winter homes around Octobei15th. As to the number of eggs layed bythe Red Shoulder, I would say that Ithink three is the average number ina set. Out of sixty-nine nests exam-ined, thirty-seven contained threeeggs, nineteen contained four, thir-teen contained two. I have nevertaken a set of five eggs, but I know oftwo sets of that number taken in thiscounty in one season. The nest of the Red ShoulderedHawk is very easy to locate for a per-son knowing the country in which theybreed and to a person that has in thepast studied the birds to some etxent.Instances are known in this countrythat this species has used the samenest for a period between twenty andthirty years. This is not saying thatthe same pair of birds used the nest,but the same pair of birds will invar-iably come back to their home nestif the latter is not destroyed or thefemale bird killed. In taking sets ofeggs from year to year thus forminga series, a person can tell by the type THE OOLOGIST
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Bald Eagles nest 125 feet from the ground in which Oscar E. Baynard spent an entire night Christmas Eve, 1910. (For publishing account see Bluebird for December, 1910) —Photo by Oscar E. Baynard 24 THE OOLOGIST of egg when a new female bird hastaken the nest for her home. This isshown by the distinct difference inshape or color of the new eggs. Seventy-five feet is the greatestheight 1 have ever found a nest abovethe ground and twenty-feet is theleast. The average height for sixty-nine nests is forty-one and one halffeet. The nest of this Hawk is composedof sticks of all sizes and barks. Somenests that are repaired from year toyear get to be very large, and conse-quently the bottom of some nests arta mass of decaying wood. The most common lining used ishemlock and grapevine, althoughfeathers, corn husks, moss, cow andpigs hair, leaves, fine twigs, and driedferns are commonly used. I havefound nests lined with paper, milk-weed, fine vines, an old Orioles nestand a piece of a grain sa

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