I checked on a Bluebird nesting box back in mid- March and it had a nice 
fresh layer of pine needles.  I was hopeful that a Bluebird would lay a 
clutch.  March came and went and no Bluebird eggs.  In
mid-April I found a Carolina Chickadee had built a nest on top of the pine 
needles.  There were already 4 eggs in the nest.

Yesterday, I noticed a Bluebird flying in and out.  I checked the nesting 
box and discovered a layer of pine needles on top of the Chickadee nest.  A 
little rummaging around yielded the 4 now-covered
Chickadee eggs.  I guess all that remains is for a House Sparrow to throw 
out the Bluebird.  Anyone else ever heard of a Bluebird taking over a 
nesting site?

Jim Wilson
Queenstown

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