2015 December 9: I always enjoy watching the Tufted Titmice at my feeders ...They are such shy birds and seem to have such big feet for their size! Their whistle (which sounds like "Peter-Peter-Peter") is so intriguing -- according to allaboutbirds, a Tufted Titmouse will repeat this up to 11 times in succession with up to 35 songs delivered per minute.