Wren Nest Predation
We had a pair of wrens build a nest in a rather large
begonia on my patio. There were 6 eggs. I was gone 3 days, (it's
been 2 weeks for the nest) and when I returned there is no sign of
the eggs. The nest is empty, but no eggs shells anywhere. What happened?
There are several possible candidates for a predator that would take
off with the eggs or swallow them whole. A snake is one good guess.
Were the eggs in a box or cavity, as wren nests usually are? If not, a
squirrel might carry eggs away.
The nest could have very well been attacked by some sort of predator.
Since it sounds like a climbing animal might be able to reach it, my
best guess would be that a raccoon or Virginia opossum made a big meal
of eggs one night. It also could have been a snake, but from the
location I'm thinking that raccoon and opossum are a better guess.
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Update: June 2012