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May 31, 2010
Bluebird Trail - 5/31/10
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Box 1 - House wrens - 0 eggs (I'm reasonably certain at this point that this is a decoy nest.)
Box 2 - House wrens - 0 eggs (I'm reasonably certain at this point that this is a decoy nest.)
Box 3 - Mountain Bluebirds - 5 blue eggs. Mom on nest. I'd say she officially began incubation of 5 eggs on 5/30/2010. Assuming an incubation period of 13-15 days, her eggs should hatch on June 12-14.)
Box 4 - House wrens - 0 eggs. (This nest has straw in the nest of twigs, indicating that it's probably not a decoy nest, but no eggs yet.)
Box 5 - Mountain Chickadees - 7 white eggs. (One more than yesterday.)
Box 6 - House wrens - 3 pink eggs. (No change from yesterday). I'm not clear why the mom is not incubating yet. Possibly the mom abandoned the nest?
Box 562 - Mountain Chickadees - 7 white eggs. (Mom on nest. I'd say she officially began incubation of 7 eggs on 5/30/2010. Assuming an incubation period of 12-14 days, her eggs should hatch on June 11-13.)
Box 7 - Tree swallows - no nest yet.
Box 8 - Western Bluebirds - 6 blue eggs (1 more than yesterday). Mom still not incubating.
Mountain Bluebird eggs: 5
Western Bluebird eggs: 6
House Wren eggs: 3
Mountain Chickadee eggs: 14
Total eggs: 28
Posted by Rob Kiser on May 31, 2010 at 11:15 AM
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