Tuesday, October 4, 2011

Mystery birds: Red-necked phalarope, Phalaropus lobatus, and least sandpiper, Calidris minutilla | @GrrlScientist | Punctuated Equilibrium

7:02 AM | Posted by Free Game Zone | | Edit Post

These two species of North American birds mystery is believed to have been present in the K-PG (KT) extinction of dinosaurs (including videos)

Red-necked Phalarope Phalaropus lobatus (before Lobipes

lobatus

; protonym
Tringa lobata

), also known as the Hyperborean Phalarope, or as the Northern Phalarope. Bottom right of the image of two rings,

Sandpiper Calidris

(before

Actodromas

minutilla, Ereunetes minutillus, Erolia minutilla , and Pisobia minutilla ; protonym

Sandpiper Tringa

), also known as the season U.S. at least, restriction, or as a daisy, photographed in a fattening pond north of Manhattan (Riley County), Kansas. NOTE: This image has been altered. That was cut from the original that you have the appropriate size for viewing on mobile media (especially for Android phones - please leave a note in the comments to let me know if this image is / n ' is not in their mobile phones) so you can see the most beautiful - and much more - the original image, click on "velociraptorize". Image:. Dave Rintoul, September 17, 2011 (with permission) [velociraptorize]

Canon EOS 5D Mark II

Question: two mystery of birds in North America in the British pop from time to time, we can identify its taxonomic families? Can you identify the species? This is a feedlot in Kansas a normal place to find these species?



answer:

is a winter plumage Red-necked Phalarope
  • Phalaropus lobatus
  • and at least two washers
  • Calidris
. Both species are found in the same taxonomic family of wading birds and shorebirds, Scolopacidae.

The phalaropes are fascinating because they have a reversal of gender roles in their reproductive system. Polyandrous females and males compete for breeding territories, which are larger than males, more aggressive and more colorful than males. Females seem to have found the right thing: after laying their eggs, they leave on their southward migration, leaving the men to the incubation of eggs and raise their young.

The Red-necked Phalarope breeds in the Arctic regions of North America and Eurasia. This species is remarkable because it is one of the few waders in winter in open water, they spend their winters in tropical oceans. Knowing this, you probably expect to have some changes to their feet help them swim. And indeed they do: the genus name
Phalaropus ("coot feet"), was inspired by the great similarity between the toes lobed necked Phalarope of coots . (Curiously, Wilson Phalarope

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