Here you will find intriguing extras our producers weren't able to fit into the Red Knot podcast:
Small actions can add up to big change. In this Audio Extra, listen as biologist Patricia González explains the motto that inspires her.
View a gallery of images from Ari’s visit to the Delaware Bay.
Click on the thumbnails for larger images.
By the age of 16 years, a red knot has logged enough miles on its annual migrations to reach the Moon.
After bulking up for their journey, red knots set off for their breeding grounds in the Arctic Circle, where each pair will make a nest of lichen and incubate their eggs together. After the chicks hatch, the female departs, leaving her mate to raise their offspring.
Sensory organs in tip of the red knot’s bill enable it to detect buried prey beyond the reach of its bill. Called Herbt’s corpuscles, these organs turn the red knot’s bill into a sensing device fine-tuned to the signal of its buried prey. Herbst’s corpuscles are found in the bills of other wading birds and even in the tongues of woodpeckers and the feet of raptors, like hawks. See the red knot’s prey-detecting bill at work in this video at our content partner, Arkive.
Explore the species pages of the other shorebirds featured in this week’s podcast: the ruddy turnstone, the semipalmated sandpiper, and the sanderling.
Keep up with the work of biologist Charles Duncan and colleagues at the Manomet blog. You will also find out about the Shorebird Recovery Project at the Manomet Center for Conservation Studies website and connect with them on Facebook.
Visit the website of the International Bird Banding Project in Tierra del Fuego to get inspired. Then find out how you can get involved in bird banding where you live.