The -kins are getting together. Siskins are little finches that are partial to eating seeds. Catkins are pods of seeds hanging from some broad-leafed trees. The two are clearly kins.
Pine Siskins are with us year round. They travel in large flocks that settle on plants to eat seeds, and on winter highways to sip salt and get mashed (see bird brains).
A lone Pine Siskin uses its feet to hold a catkin still as it extracts seeds from it.
Where there is one siskin, there are dozens. These are raiding the catkins of
OK, this Pine Siskin is not raiding catkins, but I couldn’t resist the scene.