Skip to content
Henry Sowell

Vol. I · Est. 2026

Pl. XC
Field-journal plate: Boat-tailed Grackle
The Boat-tailed Grackle plate as rendered on the e-ink frame
As rendered on the frame

The Birds · Plate XC

Boat-tailed Grackle

Quiscalus major

Icteridae · Taxon 9601

Length26–37 cm (10.2–14.6 in)
Wingspan39–50 cm (15.3–19.7 in)
Weight93–239 g (3.3–8.4 oz)

Field marks

  1. Large, lanky blackbird with a rounded crown and long dark legs
  2. Long, pointed black bill
  3. Adult male glossy black with blue-green to purple iridescence
  4. Very long, broad tail often held in a V or keel shape
  5. Female smaller and brown, with russet underparts and darker wings and tail
  6. Adult iris varies from dark brown to pale yellow

HabitatPrimarily salt marshes, tidal shorelines, mudflats, beaches, and flooded fields; also occurs around freshwater marshes and lakes in parts of its range. Usually remains close to water and may forage in nearby open or developed areas.

BehaviorGregarious and often colonial, with communal roosts. Walks on shorelines and through shallow water, rapidly probing and pecking for aquatic prey, insects, seeds, and other opportunistic foods. Displaying males fluff their plumage, spread the tail, flutter the wings, and point the bill upward while calling.

Palette

blackblue-greendeep purplerusset brownpale yellow