Spring Means Nests

After the guys do their thing and the birds pair up, it's time to build a nest! (Obviously, this isn't the case where part of "their thing" is showing off the great nest they built.) I caught the motion of her flying into the tree (which I still don't know what it is) and look:



Don't see anything? Look closer (select for larger):



That eye is unmistakable. It's a robin, building her nest. Glad to see those blue plastic bags are being put to good use.