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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Mon Feb 21, 2011 8:30 pm 
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Fly the coop? :lol: :lol:

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Mon Feb 21, 2011 8:37 pm 
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Dispersal? :redface:


.... could also be natal philopatry... ?

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Tue Feb 22, 2011 11:12 am 
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Scouting?

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Mon Apr 04, 2011 11:34 am 
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Michel boet, It is time for an answer. :whistle:

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Mon Apr 04, 2011 12:00 pm 
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Geez. Forgot all about this one. :wall: :wall:

My apologies. Old age. :big_eyes:

I read it somewhere and now I have forgotten the answer, but none of the above are correct. That I know. :big_eyes: :slap: :slap:

If anyone wants to ask a new Q. Be my guest. :lol:


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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Wed Apr 06, 2011 11:42 am 
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michel367 wrote:
What is it called when a male and female go out to search for a place to build their nest?


nest site selection?


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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Wed Apr 06, 2011 11:56 am 
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Could be Dabchick. Could be. I really have no idea any more. :wall: :wall:


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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Sun Jul 03, 2011 8:15 pm 
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Can you give us another question michel?? :pray:

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Wed Jul 06, 2011 11:06 pm 
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Ok a new question :D

We all have sparrows in our gardens and they actually do something really interesting which you can watch if you feed them. Try it at home: instead of putting their seed in the feeding dish put it on the ground (if you are sure that cats will not target them more :wink: ) so you can see them easier. one one day divide the food up into several small piles, and on another into 2 larger piles. When sparrows feed, they have a recruitment call or chirrup which they use to call their friends. when they come and feed count the number of times they chirrup and then compare the two. do they chirrup more when the food is divided into several smaller piles or when there are two larger piles and what does this tell you about how greedy they are :twisted:

You can also answer the question by just thinking about it from your own point of view, the experiment is just a fun add on :lol:

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Wed Jul 06, 2011 11:51 pm 
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Ods, if they are anything like me, they will first finish the food pile(s), and then call their friends to ask for Eno's. :lol: :redface: :twisted: :whistle:


My gut says they'll call less if they think food supply is rare, i.e. multiple piles. After they have ensured that there is enough for all (two big piles), they'll call more frequently to invite their friends to the two-pile-buffet. I think... :redface:

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Thu Jul 07, 2011 11:16 am 
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Elzet wrote:
Ods, if they are anything like me, they will first finish the food pile(s), and then call their friends to ask for Eno's. :lol: :redface: :twisted: :whistle:

:lol: :lol:

You are on the right track! they most likely will call less (recruit their friends) when they perceive the food to be scarce,

But now the question is do they perceive the food as being scarce based on the size of the piles or by the number and distribution of the piles?

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Thu Jul 07, 2011 11:38 am 
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I would guess the number of piles are to them an indication as to the abundance of food or not. I don't think that they would be able to judge the size of each pile. At their normal feeding areas, there will be for example 3 plants with seeds or 20, but the size of the plant stays the same.

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Fri Jul 08, 2011 5:55 am 
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michel367 wrote:
What is it called when a male and female go out to search for a place to build their nest?


Marriage :wink: .

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Fri Jul 08, 2011 5:59 am 
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oddesy wrote:
Ok a new question :D

We all have sparrows in our gardens and they actually do something really interesting which you can watch if you feed them. Try it at home: instead of putting their seed in the feeding dish put it on the ground (if you are sure that cats will not target them more :wink: ) so you can see them easier. one one day divide the food up into several small piles, and on another into 2 larger piles. When sparrows feed, they have a recruitment call or chirrup which they use to call their friends. when they come and feed count the number of times they chirrup and then compare the two. do they chirrup more when the food is divided into several smaller piles or when there are two larger piles and what does this tell you about how greedy they are :twisted:

You can also answer the question by just thinking about it from your own point of view, the experiment is just a fun add on :lol:


Brilliant Q, Oddesy! :clap: As you suggest, this applies equally to humans! :hmz: So, we indeed derive somewhere on the evolutionary tree from our feathered friends.

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 Post subject: Re: BIRD BIOLOGY AND BEHAVIOUR (RV)
Unread postPosted: Fri Jul 08, 2011 9:06 am 
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Rooies wrote:
I would guess the number of piles are to them an indication as to the abundance of food or not. I don't think that they would be able to judge the size of each pile. At their normal feeding areas, there will be for example 3 plants with seeds or 20, but the size of the plant stays the same.

:clap: :clap:
They will perceive several piles that are distributed widely as food being more abundant and will then chirrup more to attract other individuals as Elzet explained :thumbs_up: While if there are two larger piles they will chirrup less because they perceive the food as being less abundant.

This changes with the seasons, in winter the birds chirrup less because temperatures are lower (and temp is directly linked to energy consumption) and food is less abundant meaning they eat their fill before calling other individuals. So when they perceive that there is less food they become "greedy" :twisted:

Thanks OWN! :thumbs_up: :thumbs_up:

E and Rooies you each got half the question correct :clap: :clap: ....... I will have to give it to Rooies :clap: :clap: well done your IT!

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