Skip to Content

BIRD BIOLOGY AND BEHAVIOUR (RV)

Enjoy, participate and learn from the quiz forum. Post your quiz here for others to enjoy as well

Moderator: RosemaryH

Joao

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Joao » Wed Dec 07, 2011 12:00 am

Does the bright blue feathers of some kingfisher species contain any colour pigment?

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14488
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Imberbe » Wed Dec 07, 2011 1:11 am

No, the colour is derived from the structure of the feather and the way it reflects light, rather than from some colour pigment.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

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


One positive deed is worth more than a thousand critical words.

Joao

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Joao » Wed Dec 07, 2011 1:17 am

Yes Imberbe you are IT.

The bright blue of the feathers is a result of tyndal scattering. This is where layers of structural keratin that make up the feathers are interspersed with air spaces that reflect particular wavelengths of light to give the blue appearance.

User avatar
Rooies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 2948
Joined: Wed Jan 10, 2007 3:44 pm
Location: Welkom

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Rooies » Mon Apr 23, 2012 12:16 pm

Imberbe, you have waited too long to post another question so I am going to take over here :D

Besides the fact that Pel's Fishing-Owl eats fish, how do they differ from other Owl species?
Give thanks for unknown blessings already on its way---African saying
Member nr 8512
Cheetah supporterPURIST and proud thereof

micmic
Posts: 27
Joined: Tue Jun 02, 2009 12:31 pm

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby micmic » Tue Apr 24, 2012 6:42 pm

I'll give it a pirate shot :D

What does the go-away bird have more than any other bird ?

User avatar
Rooies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 2948
Joined: Wed Jan 10, 2007 3:44 pm
Location: Welkom

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Rooies » Thu Apr 26, 2012 10:27 am

Rooies wrote:Imberbe, you have waited too long to post another question so I am going to take over here :D

Besides the fact that Pel's Fishing-Owl eats fish, how do they differ from other Owl species?


Not even one guess :!: The answer is firstly, there is a clear absence of a facial 'disk' because this owl species does not rely on its hearing to detect prey. Secondly, its flight is not silent, because the fish cannot hear it coming.
Give thanks for unknown blessings already on its way---African saying
Member nr 8512
Cheetah supporterPURIST and proud thereof

micmic
Posts: 27
Joined: Tue Jun 02, 2009 12:31 pm

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby micmic » Thu Apr 26, 2012 9:56 pm

micmic wrote:I'll give it a pirate shot :D

What does the go-away bird have more than any other bird ?



Mine was difficult I guess...

Well, the go-away bird has more chromosomes than any other bird!

Tricky, I know :D

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 3183
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby oddesy » Wed May 02, 2012 9:13 pm

Interesting Micmic :thumbs_up: how many chromosomes?
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Rooies
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 2948
Joined: Wed Jan 10, 2007 3:44 pm
Location: Welkom

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Rooies » Fri Jun 01, 2012 10:34 am

oddesy wrote:Interesting Micmic :thumbs_up: how many chromosomes?


Odessy is still waiting for an answer :whistle:
Give thanks for unknown blessings already on its way---African saying
Member nr 8512
Cheetah supporterPURIST and proud thereof

User avatar
vinkie
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 15815
Joined: Tue Jun 07, 2011 7:07 pm
Location: Living in The Netherlands but raised in South Africa

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby vinkie » Sun Jun 03, 2012 1:00 am

Normal bird about 74-86 chromosomes
Go-Away bird about 136-140 chromosomes
Live life on the edge but be careful not to fall off! :wink:

2013 Trip: Satara, Lower Sabie, Hluhluwe, Berg-en-Dal, Lower Sabie, Satara, Elephant Plains(Sabi Sands) :dance:

Our 2013 Trip Report: Vinkie and Apex Predator back in the bushveld

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14488
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Imberbe » Mon Jul 09, 2012 6:56 pm

What is the largest prey item a pearl spotted owl has been documented to take?
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

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


One positive deed is worth more than a thousand critical words.

User avatar
vinkie
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 15815
Joined: Tue Jun 07, 2011 7:07 pm
Location: Living in The Netherlands but raised in South Africa

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby vinkie » Tue Jul 10, 2012 12:37 am

Insects?
Live life on the edge but be careful not to fall off! :wink:

2013 Trip: Satara, Lower Sabie, Hluhluwe, Berg-en-Dal, Lower Sabie, Satara, Elephant Plains(Sabi Sands) :dance:

Our 2013 Trip Report: Vinkie and Apex Predator back in the bushveld

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14488
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby Imberbe » Tue Jul 10, 2012 12:55 am

A bit larger ...
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

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


One positive deed is worth more than a thousand critical words.

User avatar
PNF
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 3321
Joined: Sun Apr 19, 2009 4:09 pm
Location: In the heart of the Waterberg; Deep in Limpopo

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby PNF » Tue Jul 10, 2012 7:29 am

A Crowned Lapwing?
Saw something about it the other day.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote."
Benjamin Franklin

Us and The Ant:
Shingwedzi 20 - 24 Aug
Tsendze 24 Aug - 5 Sept

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22282
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: BIRD BIOLOGY AND BEHAVIOUR (RV)

Unread postby onewithnature » Tue Jul 10, 2012 8:11 am

Bats?
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)


Return to “Quizzes”