Driz said:We had 2 pairs of wooley woodpeckers come and start knocking holes in our birch trees a couple years back. They drove me nuts trying to keep them from one tree or another as they just went back and forth. These guys are determined little dudes. We ended up just putting out a couple of those small square suet feeders they sell at Tractor Supply and Wallyworld. The suet blocks are a buck apiece. They still hung around but didn't knock very many new holes in the trees again though they do wander all over them picking all over constantly but damaging nothing. Now a couple years later we have a whole squadron of Wooley and Hairy woodpeckers as well as a few Nuthatches that hang around with them. They stay here all year round doing their thing but if you keep them well fed they don't seem much inclined to get too ambitious with your property. They make pretty interesting neighbors these welfare woodpeckers.
I think what you are referring to is a "Downy" Woodpecker instead of a "wooley". If they were knocking holes in your birch tree they were looking for insects and their eggs. If you caught them flying from tree to tree, flapping their wings slowly like a butterfly .... uttering a low, harsh, chattering cry, no doubt you were observing a "love performance".
I have suet and peanut feeders ..... they love both (especially the peanuts) and visit often.
A little trick in knowing whether it's a Hairy or a Downy .... the Hairy's bill is longer.
Pics: A Downy at the hummingbird feeder in the summertime.
A Red Bellied Woodpecker at the hummingbird feeder. I had to take the little flowers out as they kept knocking them out so they could get their larger beaks in the holes.
A squirrel at a nectar feeder ..... hey they all get thirsty in the summertime.
and a Downy at the suet feeder last week on the deck.