American goldfinch Spinus tristis

Small finch. Sharply pointed bill is pink in summer, grayish-brown in winter. Small head, long wings, and short, notched tail. Adult males in spring and summer are bright yellow with black forehead and wings. Females are dull yellow below and olive above with two distinct wingbars. In winter, they are drab, buffy-brown. Active and acrobatic. Sometimes in large numbers at feeders or on ground below. Found in weedy fields, cultivated areas, roadsides, orchards, and backyards.