Acorn Woodpecker or White-Headed Woodpecker?
Here's how to tell the difference
Acorn Woodpecker
White-Headed Woodpecker
Acorn Woodpecker
Melanerpes formicivorus
General appearance
The acorn woodpecker has a striking appearance with a black back, white belly, and a distinctive red crown. Its face is mostly white with a black patch around the eye and a strong, pointed bill. The wings are black with white patches visible during flight. The bird is medium-sized, with a length of around 8-9 inches.
Male vs female
Both male and female acorn woodpeckers have a bright red crown, but males have a solid red crown extending from the forehead to the nape, while females have a black band separating the red crown from the white forehead. This subtle difference helps in distinguishing the genders.
Juvenile
Juvenile acorn woodpeckers are similar in appearance to adults but with duller colors. Their red crown is less vibrant, and the black and white facial patterns are less distinct. Juveniles may also have more of a brownish tint compared to the glossy black of adults.
Size
7.5 - 9.1 in/2.3 - 3.2 oz
There's more to learn about Acorn Woodpecker
View full detailsWhite-Headed Woodpecker
Leuconotopicus albolarvatus
General appearance
The white-headed woodpecker is a distinctive bird species known for its mostly black body and stark white head. Measuring approximately 8-9 inches long, they also feature bright white wing patches, and a sturdy, chisel-like bill perfect for drilling into wood. Overall, it's their contrasting monochromatic color profile that makes them easily identifiable.
Male vs female
Males and females of this species are generally similar in appearance. However, a key difference is that males feature a small, red patch or 'cap' on the back of their head. This is absent in females, making them a little less striking but equally as fascinating.
Juvenile
Juvenile white-headed woodpeckers do not greatly differ from adults in terms of their coloration. Both adolescents and adults have the same black and white coloration. However, their plumage is somewhat duller and lacks the sheen seen in mature birds. Interestingly, juvenile males already possess the red cap of the adults.
Size
8.3 - 9.1 in/1.9 - 2.4 oz
There's more to learn about White-Headed Woodpecker
View full detailsHow to tell the Acorn Woodpecker from the White-Headed Woodpecker
Visual differences
The Acorn Woodpecker has a distinctive black back, white belly, and red crown with black around the eyes, whereas the White-Headed Woodpecker features a mostly black body and a striking white head. Acorn Woodpeckers have a continuous red crown in males; females have a separating black band. White-Headed males have a small red cap; females lack this. Both species measure around 8-9 inches long. The Acorn is bulkier (2.3-3.2 oz) compared to the lighter White-Headed (1.9-2.4 oz). Their contrasting color profiles and crown patterns are key differentiators.
Key differences and behavior
Acorn Woodpeckers and White-Headed Woodpeckers exhibit distinct behavioral traits. Acorn Woodpeckers are social, forming large cooperative breeding groups and are well-known for storing acorns in granaries. They inhabit oak-heavy areas and rely heavily on acorns, supplemented by insects and other organic matter. In contrast, White-Headed Woodpeckers form lifelong pairs, nesting in pine forests, often in cooler, mountainous regions. They primarily feed on insects, especially beetle larvae, and shift to pine seeds in winter. While Acorn Woodpeckers thrive on collective nesting and group cooperation, White-Headed Woodpeckers focus on pair bonding, with shared nesting duties and mutual preening to maintain relationships.
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