We, too, have been experiencing occasional silences at the feeder, more so
than in past years. On Dec. 27, we had two sightings of what I think was
an immature Broadwing hawk in our feeder tree. Could that have been
possible? Are they around right now? An intrepid Blue Jay stayed at the
top of the tree during the second visit and loudly scolded the hawk.
Our usual feeder birds are House and Goldfinches, with an occasional
Purple Finch pair, Tufted Titmice, White-breasted Nuthatches, Chickadees,
Tree Sparrows, House Sparrows, Blue Jays, Cardinals, Mourning Doves, Downy
and Hairy Woodpeckers. I've noticed that during feeding times, it's
unusual to have more than four different species present at one time.
This changes when the weather is very cold or snowy, however.