How to Identify a Nuthatch Bird

Nuthatches belong to the tree-climbing class of birds that also include woodpeckers and creepers. Nuthatches are particularly nimble. They are the only birds that can be seen creeping down a tree trunk in search of insects other birds may have missed. Nuthatch species found in North America include white-breasted, red-breasted, brown-headed and pygmy varieties.

Instructions

1. Estimate the size of this diminutive tree-creeper. If you see a bird moving up the trunk of a tree, and it's greater than 7 inches in length, it's a woodpecker. Nuthatches range between 4 and 6 inches in length.

2. Observe the stubby tail of the nuthatch. This feature helps to distinguish nuthatches from warblers, which are similar in size but have longer tails.

3. Look for the blue-gray backs shared by all species of nuthatches. This is different from another tree climbing species, the brown creeper, which has a mottled appearance of brown, black and white.

4. Take note of the nesting habits of the nuthatch. Like most other tree climbing species, nuthatches are cavity nesting birds. Unlike woodpeckers, nuthatches take over an abandoned cavity rather than creating their own.

5. Consider the beak of the nuthatch. The bill is narrow and straight, suited for probing deep into the crevasses of tree bark as it hunts for insects and insect eggs.

6. Notice the extra-long hind toe claw of the nuthatch, if you are privileged enough to get such a close-up viewing. This claw is responsible for the superior climbing agility of these birds.