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BIRD BIOLOGY AND BEHAVIOUR (RV)

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Pjw
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Unread postby Pjw » Sun Aug 10, 2008 4:12 pm

The obvious use of a birds bill is to feed itself. Name 2 other uses of a birds bill
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Batmad
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Unread postby Batmad » Sun Aug 10, 2008 4:15 pm

G, pat :shock: :shock:

*running over to ooms house*
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Imberbe
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Unread postby Imberbe » Sun Aug 10, 2008 4:28 pm

To clean (preen?) itself.

To defend itself or attack an enemy.
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Unread postby Pjw » Sun Aug 10, 2008 4:33 pm

Yes Imberbe.
Also, in some birds, they are an extension of the plumage and are used in courtship eg, the hornbill family. And in the white stork, it used for communication - they clap their mandibles together to make a staccato greeting for their mate
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Imberbe
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Unread postby Imberbe » Sun Aug 10, 2008 4:54 pm

Many eagles such as i.e. the Wahlbergs eagle, are known to line their nest with green leaves. This is often replenished.

Name two out of three possible motives for this behaviour.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

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Pjw
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Unread postby Pjw » Sun Aug 10, 2008 5:41 pm

1 To advertise their presence to other eagles- the green is easily visible to soaring birds
2 to keep the nestling warm?
"In the end we conserve only that which we love, we love only that which we understand, we understand only that which we are taught"
(Baba Dioum, Senegalese Ecologist)

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restio
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Unread postby restio » Mon Aug 11, 2008 8:15 pm

Hygiene? Keeping the nest clean(er) by putting fresh leaves in it?
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Unread postby Karl Jaacks » Tue Aug 12, 2008 8:53 am

Hi Guys

I will give it a shot

To keep the nest clean
maybe to keep the next camouflaged.

Karl
Nothing ventured nothing gained, so just do it!!!!!!!

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Unread postby Imberbe » Tue Aug 12, 2008 11:12 pm

:clap: Truly a team effort! :clap:

Three main reasons have been speculated upon.

1. The chemicals (aromas) in the leaves chase insects and parasites from the nest.

2. The leaves isolate the nest from below protecting the eggs or chicks from drafts.

3. The leaves stop pieces of meat dropping in to the nest structure, where it could decompose.

Giving this one to Karl Jaacks!
:clap:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


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Unread postby Karl Jaacks » Wed Aug 13, 2008 10:50 am

Hi Guys

The legs of the Marabou stork white.
What is the white?
What is the purpose of it?

Karl
Nothing ventured nothing gained, so just do it!!!!!!!

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Pjw
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Unread postby Pjw » Wed Aug 13, 2008 11:23 am

On very hot days marabou storks pass urine onto their legs. It is assumed that as this warm urine evaporates, it has a cooling effect on the bird.
"In the end we conserve only that which we love, we love only that which we understand, we understand only that which we are taught"
(Baba Dioum, Senegalese Ecologist)

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Imberbe
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Unread postby Imberbe » Wed Aug 13, 2008 12:27 pm

... or that their aim is out!
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


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Pjw
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Unread postby Pjw » Wed Aug 13, 2008 12:42 pm

:funny:
"In the end we conserve only that which we love, we love only that which we understand, we understand only that which we are taught"
(Baba Dioum, Senegalese Ecologist)

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Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Batmad » Thu Aug 14, 2008 8:20 pm

I think you are IT pat :dance:
Avid birder, wildlife enthusiast and photographer with a special interest in Bats and Birds

2014 Birding Big Year- A 365 Day quest for 800 Species of Southern African Birds

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Pjw
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Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Pjw » Fri Aug 15, 2008 12:10 pm

@ Batmad. I'm waiting for Karl to confirm the answer :whistle:
"In the end we conserve only that which we love, we love only that which we understand, we understand only that which we are taught"
(Baba Dioum, Senegalese Ecologist)


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