What is the difference between a house finch and a purple finch?

House finches and purple finches are both common birds in North America, but they have some differences that distinguish them. Here are some of the main differences between these two finches:

• Coloration: House finches have a bright red head and breast, while purple finches have a deeper, richer red color that extends down their back. Male house finches also have brown streaks on their sides and belly, while male purple finches have raspberry-colored streaking on their sides and belly.
• Size: Purple finches are slightly larger than house finches, with a wingspan of up to 11 inches compared to the house finch's 10 inches.
• Songs: Both birds have distinctive songs that can be used to identify them. House finches have a series of warbling notes that rise and fall in pitch, while purple finches have a more melodious and complex song.

Overall, while the two birds may look similar at first glance, there are enough differences in appearance and behavior to tell them apart.