I don't know if there is any significant difference between a pair of quality hunting binos or birding binos. Color? Maybe. Ruggedness? Maybe too, but I bet there are some hardcore birders out there. So pick your desired magnification and then look through as many as you can.
One pair I can definitely recommend for bang for you buck is the Bushnell Legend M series in either 8 or 10 x 42mm for around $200. They originally went for around $400 but my guess is they are ending the line. HD glass and very solid. Vortex makes some great glass as well and they originally were known by the birding community before the hunting community caught wind of them.