louis

14 Aug 2019 340 views
 
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photoblog image Red-capped larks
Red-capped larks|

Red-capped larks

 

A study of how birds handle heat. All the birds are red-capped larks. The temperature at the time was around 44°C. 

 

In the top picture, the lark chose the shadow of a fence post to sit in. You can also see that the wing is slightly dropped, which provide some space between the wing and body. The beak is not open, which is what they normally do in high temperature, to increase airflow. There is an open dam about 10 meters away behind my back, so I believe the bird had a drink.

 

The bottom picture shows how 5 red-capped larks found shadow in the overhanging bank of a dry river bed. Note the open beaks. They are not near a water source.

 

 

comments (14)

Très intéressantes explications.
Louis: Merci, Martine
  • Ray
  • Thailand
  • 14 Aug 2019, 00:56
Two excellent views of this fine bird.
Louis: Thank you, Ray
two fine shots and your text makes it all the more engaging, Louis.
Louis: Than you, Ayush. Birds have my interest.
They are smarter than us Louis, ( especially the English ) smile Two nice photo's.
Louis: smile They do learn, yes. Thank you, Franks.
It is always wonderful to see how animals handle their environment. Great illustrations of this!
Louis: So it is, Elizabeth. There are so many experiences and stories to tell. I have recently read about research into how birds cope with earth warming. What I found strange, was that no mention was made of how birds utilise shade.
  • Chris
  • England
  • 14 Aug 2019, 06:06
We all have mechanisms to cope with heat Louis, and we've actually had a few hot days hereabouts this summer too

Our larks tend to be crested..
Louis: These larks can also crest, but it is not a permanent thing, as they don't use gel like their British cousins. I have some mechanisms to cope with heat - air conditioning in the car and ceiling fans in the house. smile
All living creatures surely must find a way to survive in such heat, Louis. God have mercy.
Louis: These birds and other critters are quite used to heat and know how to survive.
  • Astrid
  • Netherlands
  • 14 Aug 2019, 06:46
That is quite some interesting information, Louis.
Great pictures too. You must have eagle eyes now...
Louis: Thank you, Astrid. Old eagle eyes, not so young anymore.
  • Chad
  • Somewhere in deep space
  • 14 Aug 2019, 08:20
Love the way they are in the shade, great photograph.
Louis: Thank you, Chad.
Adapt and survive. Handsome little birds
Louis: Some of the better looking larks, Bill.
I like your treatment that emphasized/pictoralized the markings and details of this beautiful bird.

I have found that sometimes birds pant in hot weather.
Louis: Thanks, Mary. The ones with the open beaks are actually panting. It speeds up airflow, that in turn regulate blood temperature.
  • Philine
  • Germany
  • 14 Aug 2019, 17:26
But no 'Rotkäppchen'!
Louis: Rotscheitellerche
They are clever creatures...........great pictures Louis! smile
Louis: Thank you, Martin. They can adapt their behaviour, somewhat.
Excellent shots, Louis - and interesting story.

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camera Canon EOS 7D Mark II
exposure mode full manual
shutterspeed 1/125s
aperture f/11.0
sensitivity ISO400
focal length 98.0mm
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