red knot
gregladen | May 13, 2016You've heard the phrase, "Nothing in biology makes sense except in the light of evolution," an insightful phrase penned in 1972 by Theodosius Dobzhansky. I would like to add a second part to that phrase, and it goes like this: "... and, nothing in evolution makes sense except in the light of co-evolution." This would hardly be an exaggeration, and it can hardly be better exemplified than with examples from migratory birds. Migratory birds have to be adapted to at least three different ecological settings. They breed in one area, migrate (and often spend considerable time) through another…
grrlscientist | June 10, 2010tags: Red Knot, Calidris canutus, Tringa canutus, birds, mystery bird, bird ID quiz
[Mystery bird] Red Knot, Calidris (Tringa) canutus photographed at Bolivar Peninsula, Galveston County, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 26 April 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1000s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
There is something very sad about this beautiful migratory species, can you tell me what that is?
The red knot stopover on the Delaware…
grrlscientist | November 3, 2009tags: Red Knot, Calidris canutus, birds, mystery bird, bird ID quiz
[Mystery bird] Red Knot, Calidris canutus, photographed at Quintana, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 30 September 2009 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/750s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Review all mystery birds to date.
grrlscientist | February 15, 2008tags: endangered species, red knot, Caladris canutus rufus, Delaware Bay, horseshoe crab, streaming video
This a streaming video about the shorebirds, the Red Knot, that migrate through Delaware Bay from South America. Red Knots stay in the bay for 10 days or so and feed on horseshoe crab eggs to fatten up for their long journey to their Arctic nesting grounds. In this streaming video, scientist trap and tag migratory shore birds to gather information about them. [7:04]
grrlscientist | February 7, 2008tags: birds, red knot, Calidris canutus rufus, ornithology, endangered species, conservation, streaming video
This Sunday, 10 February, at 8pm EST, the award-winning PBS series "Nature" will feature migratory shorebirds, the Red Knot, and the horseshoe crab. This program, Crash: A Tale of Two Species, examines the amazing relationship between these two threatened species.
The red knot migrates from the tip of South America to its breeding grounds in the Canadian Arctic, and stops off briefly at Delaware Bay. Here it relies almost completely on horseshoe crab eggs to refuel for the second…