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Index of Subjects Larry, This happens every year about this time just before the male fly south. Food sources are relatively scarce at this time of year so the males, which leave early, protect any food source in their area so as to maximize their calorie intake for the journey. After they leave, the females and young can stoke up hassle free. The food demand on a limited resource is spread out over time to the benefit of the population as a whole. Bob Stevens On 2012-08-10, at 10:30 AM, Larry at Bogan.ca wrote: > All during the summer we had one family of hummingbirds, but then then in the last two weeks there has been an influx of hummers. > > Now I have three feeders up and for awhile there was heavy feeding with as many as seven or more hummers. They would share and feed together. There has been a change in the last week and each of the feeders has a 'defender' usually a male hummer. This bird will not let any other hummer feed at 'its' feeder. It sits in a nearby tree or bush and if another hummer approaches, dive bombs that bird away. > > At first I moved feeders around hoping to confuse the 'defender' but quickly a bird takes up station at that feeder. Despite the number of hummers being about the same, the feeding has declined dramatically. > > Has anyone else observed this seemingly, non-productive behaviour? > > Puzzled > Larry > -- > Larry Bogan > Cambridge Station, Nova Scotia > larry@bogan.ca
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