Gnat under Glass

I was peeking through the living room blinds at some lesser goldfinches and purple finches at the feeder, when I noticed this fungus gnat (? I think) inside the glass. Finches do eat insects to some extent; and might have considered this small gnat worth consuming if they weren't so enthralled by the cracked sunflower seeds and thistle; oh, and if the gnat had been outside.