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I studied developmental rates in a suite of temperate and tropical passerine bird species from the New World to test the hypothesis that tropical passerines exhibit slower patterns of growth and development...
Hand-colored, unmounted lantern slide of a barn swallow in its nest. Original negative: OrgLot369_FinleyA2360.
Unmounted lantern slide of a black-capped chickadee perched at its nest entrance on a stump. Original negative: OrgLot369_FinleyA2580.
Hand-colored, unmounted lantern slide of a Parkman’s wren perched on a stump with food in bill. Nest entrance showing below. Original negative: OrgLot369_FinleyA1566.
Unmounted lantern slide of a bluebird at its nest hole in an apple tree on the Jennings place. Original negative: OrgLot369_FinleyA1014.
Unmounted lantern slide of a bluebird at its nest hole in an apple tree on the Jennings place. Original negative: OrgLot369_FinleyA1014.
An unidentified bird perched on a skinned deer carcass hanging from a tree. Possibly near the Deschutes River? Note on negative envelope indicates that the image might have been taken by Olaus Murie.
Two young robins in their nest facing opposite directions. Taken in Fulton Canyon.
Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.
Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.