Being 10 in 2020, a kid-driven episode of Self-Evident: A PBS American…, What is light? Listen to their calls at, or read more at Curated by Rion Nakaya with her 9 & 12 year olds. [Explore more at]. They regularly use bridges, barns, and other large buildings. Keep learning, participate in group conversations. [All in a day’s work for the “bricklaying” Cliff Swallow.] The birds might also line the inside of the nest with grass and feathers. May repair and reuse old nest, sometimes that of another species. Can you carve an ocarina from a butternut squash? Help keep this award-winning video collection up and running. Cliff Swallows build their mud nests on cliff faces and other vertical surfaces in colonies containing hundreds, even thousands of other birds. This site uses cookies to improve your experience. Smart videos for curious minds of all ages. Nest is made of dried mud and shaped like a gourd, with large chamber for nest, narrowing to small entrance on side. [The swallow scratches its head with its foot, preens, and calls.] This award-winning video collection is reader-supported. From One easy way to find Cliff Swallows is to look for their gourd-shaped mud nests clustered under horizontal overhangs—many a highway overpass is swarming with Cliff Swallows in summer. TKSST is an unprecedented collection of 4,500+ kid-friendly videos, curated for teachers and parents who want to share smarter, more meaningful media in the classroom and at home. They construct the nests from mud pellets and some fibrous material. [Several cliff swallows on the edge of a stream gather mud.] [Another swallow carefully deposits a mud pellet onto its nest.] Keeping the Peace: Threat Signals in Gull Colonies, Gentoo Penguins Build Rock Nests on the Antarctic Ground, Olive-backed Sunbird Removing Fecal Sac From Nest. [A Robin’s nest is a familiar sight…] [..but, have you ever seen a Cliff Swallow nest?] Get smart curated videos delivered every week. Dropping ice chunks down a borehole in Antarctica: What does it sound…, How to make a PB&J sandwich with a Rube Goldberg machine (or…. Scan the swallows carefully, focusing on finding a square-tailed bird with a pale, pumpkin-colored rump and dark upperparts. Scan the upper levels of a foraging flock, as Cliff Swallows often forage higher than other species. Western Spaghetti, the internet’s first viral stop-motion cooking animation, Making traditional French butter by hand at le Beurre Bordier, Japanese square lashing, a video demonstration, Buffalo Dance by the Serpent Trail Dance Group. Cliff Swallows tuck their nests away in corners and make sure that the nest opening is small so the eggs and nestlings are well protected from predators like hawks, owls, snakes, and mammals. Related watching: more videos with nests, including the Weaver Birds intricate nests and the Burrowing Owl’s Cozy Underground Home. [A cliff swallow in a nest deposits a mud pellet onto the nest. The Invention of Thanksgiving, a National Museum of the American Indian short... Hummingbird hatchlings in their nest with mother Rosie, Rangers candle the Royal Albatross egg at the RoyalCam nest, The Vogelkop Superb Bird-of-Paradise, a new species, Cornell Lab of Ornithology’s Great Horned Owl Live Cam, This “snail shell spider” uses its web to hoist objects up high, our favorite smart books, toys, games + more. From the Cornell Lab of Ornithology, watch as some cliff swallows gather small chunks of mud from the water’s edge, and then, against a cliffside or man-made wall, stack the mud pellets around themselves like 1,000 drippy bricks. [Two cliff swallows call while sitting in a mud nest. Spark questions. Click play and start a conversation. One flies away.] Start conversations. In nesting colonies of up to 3,700 nests, Cliff Swallows can be found in North America during the spring and summer. [Cliff Swallows use their bills to gather mud alongside puddles, streams, or lakes.] [A cliff swallow perches on the edge of its nest.] They also build nests in the eaves of buildings.

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