On cool August nights you can hear their whistled signals as they set wing for the pampas, to prove again the age-old unity of the Americas. Hemisphere solidarity is new among statesmen, but not among the feathered navies of the sky. ----Aldo Leopold
A grassland inhabitant, the Upland Sandpiper is a unique shorebird in that it is entirely terrestrial and rarely found in coastal or wetland habitats. Dependent on grassland habitats, it’s often considered an indicator of tallgrass prairie health. Well-adapted for the grasslands, its cryptic plumage keeps it well hidden in this environment; however, it’s distinctive “wolf-whistle” sound, whooooleeeeee, wheeelooooo-ooooo, will alert you to its presence and it as memorable as the cries of wolves or loons. Though nearly 70% of the breeding population occurs in the Great Plains of North America, Upland Sandpipers also journey to Alaska and Gates of the Arctic National Park and Preserve to breed.
Houston, C. S., C. Jackson, and D. E. Bowen Jr. (2020). Upland Sandpiper (Bartramia longicauda), version 1.0. In Birds of the World (A. F. Poole, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi-org.arlis.idm.oclc.org/10.2173/bow.uplsan.01