Least Sandpiper (Calidris minutilla) lives in mud flats across North America. It feeds on small invertebrates & insects. Its conservation status is Near Threatened.
Fascinating facts about the Least Sandpiper
- Tiny bird fits in your hand, yet it spans almost a foot across. At just 13-15 cm long (5.1-5.9 in) and weighing only 19-30 g (0.67-1.06 oz), the least sandpiper is the smallest shorebird on Earth. Its wings stretch 27-28 cm (11-11 in), barely longer than a ruler, giving it surprising agility on mudflats. Such miniature dimensions let it slip between sand grains.
- Four eggs hatch on tundra, and the chicks are on their own fast. The female lays four eggs in a shallow scrape lined with grass and moss, then both parents share incubation duties. Remarkably, the mother often departs before the eggs even hatch, leaving the father to finish. The hatchlings feed themselves and can take flight within two weeks, showing an extreme rush from birth to independence that suits the brief Arctic summer.
- They snack on horseshoe crab eggs, turning a single bay into a buffet. While migrating through the Delaware Bay, least sandpipers eat worms, detritus, and the eggs of horseshoe crabs, supplementing their diet of small crustaceans, insects, and snails.
- Within the genus Calidris, the least sandpiper is most closely related to the white-rumped sandpiper (Calidris fuscicollis).
- Genetically, the tiniest Calidris is closest to the white-rumped sandpiper, not to other "peeps" it looks like. This hidden kinship reveals that outward similarity can mask deeper evolutionary ties, reminding birders that DNA often tells a different story than plumage.
Sources
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At a glance
RangeNorth America
HabitatMud flats
DietSmall invertebrates & insects
About the Least Sandpiper
As the tide recedes, the Least Sandpiper emerges, a tiny, energetic silhouette dancing across the exposed mudflats, its staccato footsteps a testament to its restless nature. With an air of perpetual urgency, it darts and weaves, probing the sediment with its sensitive bill in search of the small invertebrates that sustain it, its very existence a remarkable balancing act between feast and famine. In its fleeting, whirling movements, we glimpse the essence of a life lived on the edge, where survival is a daily triumph.
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