Yes, Eurasian collared doves are larger than mourning doves:

http://www.tpwmagazine.com/archive/2004/apr/ed_3/

and they don't count towards your limit here in TX.

From TP&W website:
"Eurasian collared doves and rock pigeons (domestic pigeons) are not protected. There are no season length or bag limit restrictions. Hunters taking these species are advised to retain evidence of species (head or wing) on the carcass until reaching the final destination."

Always looking for small bore Francotte SxS shotguns.