sbfledgling:
Box 1: Is it occupied?
sbfledgling:
Box 1: Mirror reveals nestlings inside
sbfledgling:
Box 2: Lowering box for inspection
sbfledgling:
Box 2: Opening the box
sbfledgling:
Box 2: Checking contents
sbfledgling:
Box 2: A nest with one dead chick
sbfledgling:
Box 2: Dead chick (old enough to fledge)
sbfledgling:
Box 2: Fully formed chick had a short life
sbfledgling:
Box 2: Messy nest after several young fledged and one died
sbfledgling:
Tree Swallow in flight
sbfledgling:
Box 3: Adult activity
sbfledgling:
Box 3: Adult flying in
sbfledgling:
Box 3: Parent at box opening
sbfledgling:
Box 3: Parent about to enter
sbfledgling:
Box 4: No signs of life inside
sbfledgling:
Box 4: Opening the box
sbfledgling:
Box 4: Exam
sbfledgling:
Box 4: Looking into the nest
sbfledgling:
Box 4: Ornithologist Don Schroeder
sbfledgling:
Box 4: Beautifully formed full tree swallow nest with lining of duck feathers