Hummingbird and Butterfly Gardening: Confirm Cat ID?, 1 by pollengarden

pollengarden wrote:
The night time temps are dropping here and the Bugs are trying to wrap things up for winter. While washing windows, my daughter found quite a few Chrysalis and caterpillars including an odd ball. I am use to seeing Black Swallowtail Caterpillars like the second photo - with a little variation. But the Cat in the first photo is way out of the normal range of variation here. It seemed healthy enough - is it a Black Swallowtail?