Profile

Scrapbook photo 1
Scrapbook photo 2
Scrapbook photo 3
Scrapbook photo 4
Scrapbook photo 5
finch wench
Works at Cymer, Inc.
Attends University of California, San Diego
Lives in San Diego, CA
14,667 followers|198,322 views
AboutPostsPhotosYouTube+1's

Stream

finch wench

Shared publicly  - 
3
1
Steve Esterly's profile photoStephanie Archangelus LIGHT LEGION's profile photo
 
His work had a huge impact, especially demonstrating how white crowned sparrows learn their songs and develop dialects. I expect the NYT will have an obituary soon. 
Add a comment...

finch wench

Shared publicly  - 
 
But we should first agree on what constitutes a "transaction cost," I think.
1
1
Stephanie Archangelus LIGHT LEGION's profile photo
Add a comment...
 
Live action and of course, Tits are crucial to reality TV.  The Piip Show features wild birds feeding at miniature dioramas, which simulate feeding stations and nest-boxes cafeterias and living arrangements suited more to human lifestyle.   #happyplacefound  
8
1
finch wench's profile photoSteve Esterly's profile photoTom Nathe's profile photo
2 comments
Add a comment...

finch wench

Shared publicly  - 
 
Bird's eye view of soft matter: a solution to the problem of packing of 5 different photoreceptors in the chicken's retina (http://dx.doi.org/10.1103/PhysRevE.89.022721)
4
1
Justin Kiggins's profile photoJayden Jessie's profile photo
 
I love you my name is jj and I'm 15 
Add a comment...

finch wench

Shared publicly  - 
 
On social hierarchy and even gender identity  . . . order in the hen-house (although, I think that there could be an obvious flaw in the tail painting experiment supervised by Dr. Siobhan Abeysinghe)
7
2
Alessandro Siletto's profile photoTed Ewen's profile photo
 
We just got 20 odd chooks in this summer. I'll enjoy watching this, thanks for sharing!
Add a comment...

finch wench
owner

Discussion & Narratives  - 
 
Do you have any notable experiences with Project Wildlife?  

On Sunday, I was alerted by a clamorous murder to the trouble: two maimed and bleeding Crows whom I captured and promptly delivered to Project Wildlife.  One did not open the right eye and had an open sore near the left hallux, in addition to a wounded wing .  Suffering was evident, and at best, I hoped for humane death.  The other was active and vocal but grounded by wing injury and in the sights of a cat.  An administrative assistant at Project Wildlife notified me yesterday that the latter Crow survived and is being nursed for re-release, while the former did not make it.  

A few weeks ago, I was sort of a "first responder" to a guy I found lying unconscious on the curb.  After the guy regained partial consciousness, the paramedics interrogated him as would law enforcement officers rather than like healthcare professionals and promptly shooed me away.  It was at that moment when I was thinking that it would be nice to receive a courtesy update on the status of the patient . . . well, it is for the birds, at least!
 
In any case, I was very grateful to rely on Project Wildlife this time both for the mannerly intake and  follow-up!
1
Add a comment...
Have her in circles
14,667 people

finch wench

Shared publicly  - 
 
The color of yolk eggsplained (and discussed in the comments there) rather well.
 
Yellow as yolk

Why are egg yolks yellow?  They contain two very similar yellow chemicals called lutein and zeaxanthin.  You can see lutein here under the egg.  I like this molecule because it's almost but not quite symmetrical!  

These chemicals are synthesized only by plants.  They're called xanthophylls, from the Greek words for 'yellow' and 'leaf'.  You can get lots of xanthophylls from green leafy vegetables like spinach.   Plants use use xanthophylls to deal with problems that arise when it's too sunny.  Bright sunlight makes a lot of triplet chlorophyll, an excited form of chlorophyll, which can cause chemical reactions that damage the plant.  The xanthophyll cycle is a way of removing excess energy from triplet chlorophyll in a harmless way.

Animals get lutein and zeaxanthin from plants.  The retina of your eye contains these chemicals!  Since these chemicals look yellow, they absorb purple light... and it seems they help our eyes avoid the damaging effects of that light.

Why do egg yolks contain these chemicals?  I don't know.

These chemicals are colorful because they have a long chain of conjugated double bonds between carbon atoms - shown as alternating single and double bonds in this picture.  Electrons vibrate back and forth along this chain in a fun quantum way.  So, when a photon of the right color hits the molecule, it can easily be absorbed - and its energy goes into the motion of electrons!

Like piano strings, the electrons in chains of conjugated double bonds vibrate faster when the chains are shorter.  Molecules with a chain of fewer than 8 such bonds absorb only ultraviolet light, so they look colorless to us. With every extra double bond, the system absorbs photons of longer wavelength.  Lutein and xanthophyll absorb purple light - so they look yellow.   Carotene, from carrots, absorbs blue light - so it looks orange!

For more fun, try:

http://en.wikipedia.org/wiki/Lutein
http://en.wikipedia.org/wiki/Zeaxanthin

See how similar they are!  For the xanthophyll cycle, see:

http://en.wikipedia.org/wiki/Xanthophyll#Xanthophyll_cycle

For conjugated double bonds and how they absorb light, see:

http://en.wikipedia.org/wiki/Conjugated_system

#chemistry
15
2
Lars Fosdal's profile photoJohn Baez's profile photoJustin Willcox's profile photoErik Swiger's profile photo
8 comments
 
Hi im masooma plz me

 ·  Translate
Add a comment...

finch wench

Shared publicly  - 
 
Great.  Now that Lenta.ru has been nationalized, I expect that the only bird news to come out of Russian press will be of "Bush Legs" and avian-assisted Zionist telemetric espionage plots (yeah, that's a thing, apparently: http://en.wikipedia.org/wiki/Israel-related_animal_conspiracy_theories). 
2
Add a comment...

finch wench

Shared publicly  - 
 
This is not "Blackwater in Ukraine;" these are eagles/eaglets at Blackwater, the National Wildlife Refuge in Maryland!

And for those of you who might have seen the allegations of Blackwater in Donets'k (despite my Tweet-attempt to intercept the Daily Mail reporter who took the bait and shouted 'Blackwater!' in a crowded geopolitical community), I have compiled a quick and dirty list of why these claims are specious at best: goo.gl/yMVc0h   
2
Add a comment...

finch wench

Shared publicly  - 
 
I'll have the Chicken Kiev, with a side of ethics please.
3
1
Darren Pike's profile photo
Add a comment...

finch wench

Shared publicly  - 
 
I know what it feels like to suffer laceration by Great Horned Owl talons.  I also know what it feels like when a bird of prey does a "happy dance" on my head.  Based on the accounts, I surmise that those in Springfield, MO are not quite "attacks."
4
2
William Rutiser's profile photoGary Solomon's profile photoSteve Esterly's profile photomichael christian's profile photo
6 comments
 
+Christopher Carr, I get shagged by a non-rare parrot regularly.    +Steve Esterly, thanks for posting the article (I liked that part about the glass lizard as a pest control nestbox pet!).    
Add a comment...

finch wench
owner

In the News  - 
 
I wonder why the +NBC 7 San Diego reporter did not elaborate on the California Least Tern (Sterna antillarum browni) nesting program at Lindbergh Field (described here: http://goo.gl/fo0YGj), which is ostensibly conducive to the goals of mitigating bird strikes and of augmenting the Least Tern population  . . . wait, what?  
1
Add a comment...
People
Have her in circles
14,667 people
Work
Employment
  • Cymer, Inc.
    Sr. Scientist, 2012 - present
  • Zoological Society of San Diego
    Independent consultant, 2010 - 2010
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
San Diego, CA
Story
Tagline
avian materials scientist and cosmo-quail enthusiast
Introduction
I ♥ birds.  

I am a birder (mostly an urban one, these days), an aviculturist, and an avian scientist of some sort, but not quite an ornithologist.

I have spent days and nights reading and writing about quails in the cosmos as if it were my job; I am still in recovery.

Of interest to bird-lovers in San Diego, I manage +Avian San Diegan, a page dedicated to birdwatching, aviculture, ornithology, and avian science news/events in San Diego County.

Your comments will probably not be answered in the order in which they were received.  In most cases, it's not you; it's me. 

Education
  • University of California, San Diego
    present
Basic Information
Gender
Female
finch wench's +1's are the things they like, agree with, or want to recommend.
Aerial shaking performance of wet Anna's hummingbirds
rsif.royalsocietypublishing.org

Aerial shaking performance of wet Anna's hummingbirds. Victor Manuel Ortega-Jimenez1,* and; Robert Dudley1,2. 1Department of Integrative

Structure and optical function of amorphous photonic nanostructures from...
rsif.royalsocietypublishing.org

Abstract Non-iridescent structural colours of feathers are a diverse and an important part of the phenotype of many birds. These colours are

Ladies and gentes: Maternally inherited DNA and ancient honeyguide host ...
www.pnas.org

PNAS. Proceedings of the National Academy of Sciences of the United States of America. Skip to main page content. Info for Authors; Editoria