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Author Topic: New developments in the field of science  (Read 697082 times)

T40cfr403

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Re: New developments in the field of science
« Reply #210 on: January 26, 2016, 06:36:58 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #211 on: January 26, 2016, 06:37:52 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #212 on: January 26, 2016, 06:42:18 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #213 on: January 27, 2016, 09:33:01 AM »
The Language of Sparrows - How Bird Songs Are Evolving To Compete With Urban Noise

https://baynature.org/articles/the-language-of-sparrows/

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #214 on: January 27, 2016, 09:38:49 AM »
Diverse migration helps birds cope with environmental change

http://www.sciencedaily.com/releases/2016/01/160126085759.htm

Video: BIRD MIGRATION - Why is it changing?  https://vimeo.com/151900214
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #215 on: January 28, 2016, 08:43:24 AM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #216 on: January 29, 2016, 10:13:17 AM »
The magnetic compass of birds is affected by polarized light

http://www.sciencedaily.com/releases/2016/01/160126110912.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fplants_animals%2Fbirds+%28Birds+News+--+ScienceDaily%29

Quote:

"The researchers have put forward a thesis that the birds use it to accentuate the magnetic field during sunrise and sunset -- times of day when migratory birds are believed to determine their direction and calibrate their compasses before migrating."

Isn't that interesting? Makes you wonder about the effects of urban light pollution.
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #217 on: January 30, 2016, 11:54:14 AM »
The nose knows - in a nutshell. Reproduced separately from peraspera's posting above.

Turkey Vultures and Gas Pipelines

http://birdnote.org/show/turkey-vultures-and-gas-pipelines
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T40cfr403

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Re: New developments in the field of science
« Reply #218 on: January 30, 2016, 12:11:32 PM »
peraspera - Thank you so much for your contribution! I hope many will find the time to skim through Stager's paper, if nothing else but for the schooling you'll get in the "scientific method" of research. Those poor vultures in the early experiments! But as Stager so meticulously presented and as the Union Oil pipeline workers represented, there's nothing better than good, non-judgmental, field observations. I kept wondering, when is someone going to actually look inside a vulture's head and Stager did not disappoint. It's a wonderful paper that confirms my fondness for and admiration of the turkey vulture, particularly after watching RRP's groundbreaking, Missouri turkey vulture webcam. Many thanks to all!
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #219 on: January 30, 2016, 01:04:06 PM »
Camouflage really does reduce chances of being eaten

http://www.sciencedaily.com/releases/2016/01/160129090101.htm

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T40cfr403

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Re: New developments in the field of science
« Reply #220 on: January 30, 2016, 01:05:18 PM »
Ancient extinction of giant Australian bird points to humans

http://www.sciencedaily.com/releases/2016/01/160129090057.htm

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baziunc

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Re: New developments in the field of science
« Reply #221 on: January 30, 2016, 03:00:12 PM »
Quote from: T40cfr403 on January 30, 2016, 01:04:06 PM
Camouflage really does reduce chances of being eaten

http://www.sciencedaily.com/releases/2016/01/160129090101.htm



T40, I enjoyed reading this story.  Makes sense to me!  Loved reading how the scientists came to prove it by studying those Nightjars! 

I enjoy the regular and nearly-incessant calls of the Chuck-will's-widow on summer nights out my back window.  Though the calls tell me those birds are moving around, since they are nocturnal hunters, I am aware they are very nearby night after night - probably only a few feet away from my back windows where there is an abundance of suitable food for them, and also the perfect sort of nesting and/or daytime roosting areas to perfectly camouflage them.  So often I have spent long periods of time with binoculars pouring over almost every square inch of their likely daylight nesting and/or roosting locations looking for them, but never have been able to locate a single one.  They have nearly-perfect camouflage, as mentioned in the scientific report you posted about Nightjars, which includes the Chuck-will's-widow, among others, such as the similar, but smaller, Whip-poor-will.  After enjoying being in an area frequented by nesting Chuck-will's-widows,  I read more about them, and in addition to other info, I had to chuckle at myself when I uncovered one particular fact on the Cornell Lab of Ornithology's site about this bird that said, "Incubating adults are incredibly well camouflaged and virtually invisible unless you nearly step on them."   :D :D  No wonder I never could spot one with my eyes!   ;)

That fact is mentioned in the "Nest Description" paragraph as you scroll down the page at that Cornell page at:
https://www.allaboutbirds.org/guide/Chuck-wills-widow/lifehistory

I also like this page about various Nightjars, and the first few pics on it clearly illustrate just how well the Chuck-will's-widow is camouflaged on its ground nest... the first 7 of these photos I speak of are near the top of this page and just so happen to be taken in my state of North Carolina.  They can be clicked on to be enlarged:
http://carolinabirds.org/HTML/NA_Nightjar.htm
« Last Edit: January 30, 2016, 03:24:44 PM by baziunc »
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T40cfr403

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Re: New developments in the field of science
« Reply #222 on: February 02, 2016, 02:53:25 PM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
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T40cfr403

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Re: New developments in the field of science
« Reply #223 on: February 02, 2016, 07:45:07 PM »
Robotic Falcon Could Keep Birds Away from Airplanes
 (I believe the operative word here is "could.")

http://insideunmannedsystems.com/robotic-falcon-could-keep-birds-away-from-airplanes%E2%80%A8/

Be sure to watch the video of the robotic falcon perching on a hand. https://www.youtube.com/watch?v=2QqTcQ1BxIs

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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring

T40cfr403

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Re: New developments in the field of science
« Reply #224 on: February 03, 2016, 09:52:07 AM »
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Only within the moment of time represented by the present century has one species -- man -- acquired significant power to alter the nature of the world.
― Rachel Carson, Silent Spring