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Common Grackle


Common Grackle
Photo Information
Copyright: Jean Yves Bissonnette (JYB) Silver Star Critiquer/Gold Note Writer [C: 47 W: 7 N: 144] (3888)
Genre: Places
Medium: Color
Date Taken: 2008-05-01
Categories: Nature
Camera: Canon EOS 30D, Canon 100-400/4.5-5.6L IS, Digital RAW ISO 400
Exposure: f/5.6, 1/640 seconds
Photo Version: Original Version
Date Submitted: 2008-07-31 19:06
Viewed: 1317
Points: 4
[Note Guidelines] Photographer's Note
Thanks for all your critiques and comments. Have a nice day to all. JYB

Infos on this bird.

A familiar sight on suburban lawns, the Common Grackle can be recognized by its iridescent purple and bronze plumage and long, keel-shaped tail. It's expanding its range into the far West, but is most common in the East.

Description

Large blackbird.
Iridescent black all over.
Long tail, keel-shaped in flight.
Eyes yellow.

Size: 28-34 cm (11-13 in)
Wingspan: 36-46 cm (14-18 in)
Weight: 74-142 g (2.61-5.01 ounces)
Sex Differences
Female slightly smaller and less glossy.

Sound
Song a harsh, unmusical "readle-eak," like a rusty gate. Call a sharp, harsh "chack."


Conservation Status
Abundant and widespread, extending its range west. Eastern populations declining from an all-time high that occurred around 1970.

Other Names
Quiscale bronzé (French)
Zanate norteño (Spanish)


Cool Facts

The Common Grackle is an opportunistic forager, taking advantage of whatever food sources it can find. It will follow plows for invertebrates and mice, wade into water to catch small fish, and sometimes kill and eat other birds at bird feeders.


The Common Grackle commonly engages in anting, allowing ants to crawl on its body and secrete formic acid, possibly to rid the body of parasites. In addition to ants, it has been seen using walnut juice, lemons and limes, marigold blossoms, choke cherries, and mothballs in a similar fashion.


The Common Grackle has benefited from human activities. The clearing of the Eastern forests was to its liking. The expansion of agriculture, along with the use of mechanical crop harvesters, improved overwinter survival by increasing the supply of waste grain. In the West, the Common Grackle has moved into new areas by following the planting of ornamental trees.

Source : http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Common_Grackle.html

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Critiques [Translate]

  • Great 
  • trekks Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1995 W: 141 N: 3390] (13665)
  • [2008-07-31 19:22]

hi JYB

A fine macro shot of bird with your tele lens and you caught it at alert mode with a kind twist of the head and sharp eye looking back. Good composition with nice BG blur. Informative note.

tfs, bill

  • Great 
  • Noslo Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 222 W: 70 N: 117] (920)
  • [2008-07-31 23:33]

Nothing common about this photograph. Good composition, and very sharp. Your exposure is very good too! Well done, and great note!

Lars

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