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ForestCavity nestSmall · 48 g
ID tip
Adult males are iridescent black on their head, back, sides and tail. They have a white stripe behind the eye and a lower white stripe across each side of the head, a red chin and a bright yellow belly. They have black wings with large white patches. The female is completely different in appearance: mainly black, with a pale yellow breast, a brownish head with black streaking and fine barring on the back, breast and sides. Originally, the female was considered to be a different species and named the black-breasted woodpecker by Cassin. Measurements: Length: 8.3–9.8 in (21–25 cm) Weight: 1.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Williamson's Sapsucker
One bar for each month. Filled bars are the 8 months with records; pale bars are months with none. The wide bar is June, the month with the most records.
Where to see the Williamson's Sapsucker
The map shades 3 countries with regular records. Everything unshaded has no records. Countries are listed below the map.
About the Williamson's Sapsucker
Williamson's sapsucker is a medium-sized woodpecker belonging to the genus Sphyrapicus (sapsuckers).
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Red-naped SapsuckerSphyrapicus nuchalisThe red-naped sapsucker is a medium-sized woodpecker, measuring 19–21 cm (7.5–8.3 in) long and weighing 32–66 g (1.1–2.3 oz).
Red-breasted SapsuckerSphyrapicus ruberAdults have a red head and upper chest, with a white lower belly and rump.
Yellow-bellied SapsuckerSphyrapicus variusThe yellow-bellied sapsucker has a length of around 19 to 21 centimetres (7+1⁄2 to 8+1⁄4 in), and an average weight of 50.3 grams (1.77 oz), although this can range anywhere from 35 to 62 grams (1.2 to 2.2 oz).
Side by side: Williamson's Sapsucker vs Yellow-bellied Sapsucker · Red-breasted Sapsucker vs Williamson's Sapsucker · Red-naped Sapsucker vs Williamson's Sapsucker
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