[tn-bird] Re: [Northern Male Cardinal Feeding Female Blue Grosbeak
- From: OLCOOT1@xxxxxxx
- To: tn-bird@xxxxxxxxxxxxx
- Date: Wed, 24 Jul 2002 07:54:43 EDT
In a message dated 7/24/02 3:16:58 AM Central Daylight Time,
rwf@xxxxxxxxxxxxxxx writes:
> Adult education is not restricted to humans. In Florida,
> a green heron has taken learning to the extreme, completely
> reinventing its hunting technique
This activity has been know for years down in Florida. When first discovered
people started looking and finding others that had evidently learned the
technique. I first saw it in the 80's down there and have since seen more
than one Green Heron up here dropping a bug or piece of something on the
water and if not successful moving it to a new position. Almost like the bill
dabbling method used to attract fish by Snowy Egrets that I put on a web site
last year.
On the species feeding other species thread, down at the pits one day I
watched a Starling feed a begging House Sparrow. It must have know that since
both species are declining in numbers and no one has figured out why yet;
they had better help each other out.
Some species have special color and distinct patterns of markings on the
inside of the bill to induce the feeding instinct and to give a bright target
for the parent to hit but also possibly keep them from feeding the
competition since the patterns are species specific. The red lining and white
spots were very prominent on the nestling Black-billed Cuckoo in the photos I
posted last year.
The more you watch, the more you see, the more you learn.
Good Birding!!!
Jeff R. Wilson
OL' COOT / TLBA
Bartlett Tenn.
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