[Bluebird-babble] Juniper Titmouse Eggs & questions

[CBPKevin@aol.com]

In a message dated 4/21/2006 11:54:02 AM Mountain Standard Time, 
pjgould at msn.com writes:
Is it normal for these titmice to keep the eggs covered when the birds are 
not incubating?
   Tree swallows also build a canopy of feathers over their eggs in 
nestboxes.  Perhaps it's to discourage predators, especially birds, who stick their 
heads in the box looking for a meal.
Also, one pair of Mountain Bluebirds appear to have stopped constructing a 
nest after putting in a ring of grass about 4" high.  Is this normal?  A pair 
has begun construction of a nest in another box a ways away but within viewing 
distance - could this be the same pair that has just switched sites?
   I think there are multiple possibilities:  Perhaps one bird of the pair 
building the first nest is now building the 2nd nest with a different mate - 
either through choice or necessity (one bird died or moved/was chased out of the 
area).  Or perhaps it is the same pair.  Or it could be two different birds!

Kevin Corwin
Centennial
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