Ladder-Backed Woodpecker or Nuttall’s Woodpecker?
Here's how to tell the difference
Ladder-Backed Woodpecker
Nuttall’s Woodpecker
Ladder-Backed Woodpecker
Dryobates scalaris
General appearance
The ladder-backed woodpecker is a small bird characterized by its distinctive black and white barred pattern across its back resembling a ladder. It has a white belly and flanks, while its wings and tail are black with white spots. The bird's face features a white stripe above and below the eye, with a contrasting black line running from the bill to the neck.
Male vs female
Males can be distinguished by a red crown on their heads, while females lack this red crown, having a black and white head pattern instead. This sexual dimorphism is particularly noticeable during the breeding season.
Juvenile
Juvenile ladder-backed woodpeckers resemble adult females but have a duller and less distinct barring pattern on their back and wings. Their head patterns are similarly muted, lacking the clear contrast seen in adults. They do not possess the red crown seen in male adults.
Size
6.3 - 7.1 in/0.7 - 1.7 oz
There's more to learn about Ladder-Backed Woodpecker
View full detailsNuttall’s Woodpecker
Dryobates nuttallii
General appearance
The Nuttall's woodpecker is a small bird primarily black and white. It features a distinctive black and white barred pattern on its back and wings, while the underparts are white with subtle black streaks on the sides. The face has a black and white pattern, with a white stripe running below the eye. The small size and intricate patterning help distinguish it from other woodpecker species.
Male vs female
Males have a small red patch on the back of the head, which is absent in females. Females have a similar black and white barring and streaking pattern but lack the red coloring entirely. Both genders share the same habitat and range, making the red patch a key identifier for males.
Juvenile
Juveniles resemble adults but are generally duller in coloration. They may have some brownish tones in their plumage, and the streaking on the underparts is less defined. Juvenile males might show a smaller or more indistinct red patch compared to adult males. As they mature, their plumage becomes more vivid and defined.
Size
6.3 - 7.1 in/1.1 - 1.7 oz
There's more to learn about Nuttall’s Woodpecker
View full detailsHow to tell the Ladder-Backed Woodpecker from the Nuttall’s Woodpecker
Visual differences
The Ladder-Backed Woodpecker has a noticeable "ladder" pattern of black and white bars across its back, with males exhibiting a red crown. In contrast, Nuttall's Woodpecker shows a black and white barred pattern but with black streaks on white underparts and a small red patch on males' heads. Both species are similar in size, weighing around 0.7-1.7 oz and measuring 6.3-7.1 inches. The Ladder-Backed's facial stripes contrast more prominently than Nuttall's, aiding identification.
Key differences and behavior
The Ladder-Backed and Nuttall's Woodpeckers exhibit distinct behavioral traits that aid field identification. The Ladder-Backed Woodpecker thrives in dry regions with diverse habitats, including deserts and thorn forests, whereas the Nuttall's Woodpecker primarily inhabits oak-rich areas and wooded canyons of coastal California. Both species display year-round pair bonding and use cavity nests, but Nuttall's males typically excavate new cavities annually, while Ladder-Backed pairs might share the excavation. Diets for both woodpeckers are insect-rich, though the Ladder-Backed includes cactus fruits and the Nuttall's eats few acorns, despite residing in oak habitats. At feeders, both enjoy suet and seeds. Such behavioral and habitat preferences are crucial for field identification.
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