[NatureNS] Birds tapping windows for food

From: "James Hirtle" <jrhbirder@hotmail.com>
To: naturens@chebucto.ns.ca
Date: Wed, 04 Oct 2006 18:31:07 +0000
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This is an interesting article if anyone is interested in pursuing the topic 
further.

To quote Jim Ferguson from the Renfrew Mercury, Sept. 26th.
jamesh@nrtco.net

"Who is that tapping?
Once birds have come to recognize you as a provider of food, you can expect 
therm to hassle you a bit when the suply becomes low. One tactic is to tap 
on windowpanes. A bird will tap over and over again on the glass with its 
bill, to add emphasis to their plight they will sometimes flutter their 
wings to get your attention.  Window tapping is not like the window striking 
birds do in the spring when they see their image in the glass and attempt to 
drive the intruder from their territory. The tapping stops when you feed the 
birds but the striking does not until the glass is covered in some way or 
the eggs in the nest hatch and the need to get rid of the intruder 
disappears.

Chickadees and blue jays in particular (nuthatches, sparrows and finches 
will also use this method to get attention) are very good at reminding us 
that it is time to be fed or the supply has run oiut. They have been known 
to follow their care givers around the house tapping only on the windowpanes 
where their providers are working inside.

Some species, cardinals for example, will bring empty sunflower seeds to a 
windowsill and drop them, sometimes they will bring several, drop them and 
then look in the window. Jays will bring empty peanut shells to a 
windlowsill and pick them up and drop them many times until we respond by 
putting out more peanuts."

Interesting explanation, isn't it?
Jim is a retired teacher and writes an interesting column in the Mercury 
every week...worth the price of the paper.

Elizabeth


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