Sharp-tailed Sandpiper vs Thick-billed Longspur

The Sharp-tailed Sandpiper and Thick-billed Longspur are distinct in habitat and appearance, with the former being a shorebird and the latter a grassland bird. Key differences include the Sharp-tailed Sandpiper's more elongated body and bill, compared to the Thick-billed Longspur's compact form and stout bill.

Look for the Sharp-tailed Sandpiper's rufous crown and streaked breast in wetland areas. In contrast, the Thick-billed Longspur can be identified by its aerial display and 'T'-patterned tail in open grasslands. Habitat is a strong initial clue: shorebirds like the Sharp-tailed Sandpiper are rarely found in the grassland habitats preferred by the Thick-billed Longspur.

The Sharp-tailed Sandpiper is generally larger and more elongated than the Thick-billed Longspur, which has a more compact and robust build.

Sharp-tailed Sandpipers have a rufous crown and distinct streaking on the breast, while Thick-billed Longspurs display a more uniform brownish plumage with a distinctive white-and-black 'T'-patterned tail.

Sharp-tailed Sandpipers are often seen probing mudflats for food, while Thick-billed Longspurs perform aerial displays, fluttering upwards and descending with a tinkling song.

Sharp-tailed Sandpipers are typically found in wetland and mudflat habitats, whereas Thick-billed Longspurs prefer open, shortgrass prairies and overgrazed pastures.

The Thick-billed Longspur is known for its tinkling, warbling song during its aerial display, while the Sharp-tailed Sandpiper's vocalizations are less prominent in field identification.