Hi, Mary. Sorry that I didn’t see this earlier. I keep mine in one place for awhile but if I don’t have any activity then I move mine. Right under a feeder is a great plan, but watch carefully and make sure you check and release any native birds yet you catch. Sometimes it’s hard to tell the difference between the sparrows so really know our sparrows.
Another idea is to put it right near a shrub, or a fence post.
Now is a GREAT time to trap because there are so many juvenile house sparrows around. I’ll be glad. Help you with euthanizing them with starter fluid. Personal Message me.
I keep my trap on the ground but Blaine recommends that you raise it off the ground. So try both.
Tammy