[NatureNS] Feeder Protector behaviour

Date: Fri, 10 Aug 2012 10:30:57 -0300
From: "Larry at Bogan.ca" <larry@bogan.ca>
To: naturens@chebucto.org
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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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