SedonaDebbie said: the big sphynx moth only flies at night so you never see them.
Nonsense!
Go out and visit the moon garden, enjoy the spectacle...
They are so extremely cool that I find it worth while to grow alternative host plants like black nightshade and those tomatillo with the tiny fruit that comes up everywhere in middle GA.
At my house, the songbirds get most of the hornworms, searching them out is a non issue.
Here's one looking for caterpillars on the ghost pepper plant...
