An animal is draining my hummingbird feeders without breaking them, pulling them down, or spilling them. There are no tracks on the deck. The feeders are on shepherd's hooks attached outward from a deck railing. A third is on a free stranding hook in my yard. Two more are hanging from the soffit on my porch. The feeders are standard of varying types with small feeding ports. I usually have 3-6 pair of hummers and the males have arrived. The lot is wooded. They drained .5 gallons of nectar per night for the last 3 nights. I moved the feeders but the results was the same. I have a lot of wild life in my yard jack@endicott.org 708-955-9607