Yesterday (Dec 7, 20) I went to a local park (Rancho San Rafael) with loads of bushes with cherries which has attracted lots of finches. House, Cassin's and less frequently Purple Finch are all reported here. I am having trouble deciding whether I saw any Purple Finch. I have enclosed one photo that I think is a Female Cassin's Finch and 2 poor quality photos of a bird that I think is a Female Purple Finch. Can someone please tell me whether my guess is correct and what clues were used to figure this out. Both birds have a white eyebrow.