Quail (is the plural quail or quails?)

Quail (is the plural quail or quails?)

Today’s image(s): Quails on top of a roof. There were at least 7 or 8 altogether, including two chicks. Funny birds! Turns out either quail or quails is acceptable as a plural, by the way.

The house with the quails. You can see one running up the roof to join its brethren.
Zoomed in view (I have a Panasonic Lumix DMC-TZ5 – amazing zoom feature for a digital camera!)