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Larry,
Seven eggs has been noted before, but the usual amount is three to four. If
you can check without disturbing Mom, see if all the eggs are pastel-blue
Robin eggs. It is possible that one may be a Brown-headed Cowbird.
Incubation will take 11 to 14 days starting typically the day before the
last egg is laid. They have been known to have three broods a season, so
keep your eyes  on the nest.

There is some research that would indicate that birds will have larger
clutches if there are more resources, including calcium, which is used to
create eggshells and baby skeletons.
Bill Calfee
Dorset, VT
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----- Original Message -----
From: "Larry Ryan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, June 24, 2002 10:37 PM
Subject: robins eggs


> Earlier this year we observed 3 robins eggs in a nest built under our
deck.
> The birds have hatched and left the nest. We have noticed robin activity
> again and upon checking the nest see 7 eggs. Is this number of eggs
normal?
>
> Larry Ryan
> Warren, VT
> [log in to unmask]
>