Pine Siskin, a member of the finch family, is related closely to redpolls and goldfinches. The Siskin is an irruptive species that can be common in mid-Michigan some winters and scarce in others. It’s kind of a drab brown colored bird at first glance. But their neat brown striping and yellow wing tips make them seem dapper.
As winter approaches, Pine Siskins become considerably plumper to help
them survive. Each bird can pack sufficient seeds into its expandable
esophagus to support itself through five hours of rest at -4 degree
Siskins eat seeds of alders, birches, spruce, and other trees. They
also feed on Nyjer® Thistle and other weed seeds, forbs, buds, insects, and
spiders. They are attracted to salt licks and salt treated highways in
the winter and sometimes drink sap at drill wells created by sapsuckers.