Added some recent observations…

Added some recent observations from:

Thamnophis atratus atratus
Thamnophis melanogaster
Thamnophis sirtalis tetrataenia
Thamnophis sirtalis fitchi
Thamnophis proximus rubrilineatus
Thamnophis elegans elegans
Thamnophis hammondii
Thamnophis cyrtopsis cyrtopsis
Thamnophis eques