Are you wanting it alive or dead? Cos if you want it dead, a catapult will do it no problem. Air rifle as well, or a shotgun. A bucket in the ground would do it as well I imagine, with a bit of grain in it. I haven't tried a bucket deliberately, but occasioanally birds get into the loft and they always end up landing in a bucket and can't get out.
Larsens are a bit of work to make and the difficulty is catching the 1st brid (the call bird).