[Maine-birds] Mallard talk

This mallard appeared to have a tic of some

sort. It kept opening and closing it's mouth.

I've seen birds at my feeder with unusual

behavior, I'll call them tics, but not any

larger birds. Comments?

http://photosbychance.zenfolio.com/p501323621/h4772b722#h4772b722

Cheers,

Dave

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