The 2015 CT Hunters guide defines under FIREARMS HUNTING:
"The holder of a firearms hunting license may use rifles, shotguns, muzzleloaders, handguns, and high-velocity air guns subject to certain restrictions" and further defines "High-Velocity Air Guns: Restricted to those that use a single ball or pellet-like projectile. Additional restrictions on the use of air guns are the same as those for rifles and handguns."

The question is are there any lower velocity hand pump BB/pellet guns that are not covered by these restrictions? If so, would their use do require obtaining a hunting license?