Butterfly trees?

Lately I've found butterflies sitting in trees.  Are they laying eggs on the leaves?

Or just resting?

 

Who am I?

I thought this would be easy.  But is it a Black form of the Tiger swallowtail? (see here)

Or a Pipevine swallowtail (here)  or a Black swallowtail (here) or a Spicebush swallowtail (here)?

Or does it matter if they're all beautiful?

 

More Butterflies

Monarch

Black swallowtail

 

Butterfly

There were butterflies everywhere in the flower field at the art museum.  This one (I think) is a black swallowtail.

 

Another visitor

 

They do love zinnias!

(me too)

Great day for butterflies

On a hot afternoon at the arboretum, the butterflies were busy.  This Gulf Fritillary was tasting a verbena.

Its wings look even better from the back.

This variegated fritillary ws a little torn up.

The black swallowtail kept landing on the hot metal fence.