There are several species of birds found at bird feeders that resemble each other.  The NBFS has provided helpful tips on identifying tricky birds.

• Black-capped Chickadee vs. Carolina Chickadee
• Downy Woodpecker vs. Hairy Woodpecker
• House Finch (female) vs. House Sparrow (female)
• House Finch vs. Purple Finch
• Red-bellied Woodpecker vs. Red-headed Woodpecker