Greetings We have 6 hummingbird feeders at our house here in Wakeman, Lorain County, which are attracting a significant amount of Ruby Throated Hummingbirds. The last couple of days we've noticed a female would attack another female that was feeding. It seemed like it was sitting/ hovering on the back of the other and pushing / or rather not allowing the other to raise it's head from the opening without being pecked in the head . Both had their tails flared as we've seen when others are dominating a particular feeder. It only appears to be two hummers out of about a dozen that are behaving in this manner and only on the platform type feeder. (It has openings in the top similar to the oriole feeder). We've pretty much ruled out that they are two different species. Perhaps they're just behaving like siblings? The six feeders are spread out: 4 in the back yard along the deck railing with geranium baskets scattered in between and 2 in the front among broom corn plants. The aggressive behavior is happening in the back only. Any input on what is actually happening would be deeply appreciated. Cheers Dorothy & Doug ______________________________________________________________________ Ohio-birds mailing list, a service of the Ohio Ornithological Society. Our thanks to Miami University for hosting this mailing list. Additional discussions can be found in our forums, at www.ohiobirds.org/forum/. You can join or leave the list, or change your options, at: http://listserv.muohio.edu/scripts/wa.exe?LIST=OHIO-BIRDS Send questions or comments about the list to: [log in to unmask]