Head to head
Northern Pygmy-Owl vs Elf Owl
The northern pygmy-owl and elf owl are both tiny owls that punch well above their weight in different ways, one through sheer hunting boldness and the other through sheer scale of miniaturisation.
| Northern Pygmy-Owl | Elf Owl | |
|---|---|---|
| Scientific name | Glaucidium californicum | Micrathene whitneyi |
| Size | Small but larger than the elf owl | Smallest owl species in the world |
| Diet | Small birds, mammals, and large insects | Almost entirely insects and arthropods |
| Nesting | Tree cavities | Old woodpecker holes, often in saguaro cacti |
| Notable trait | False eye markings on back of head | Aggressively defends its nest cavity |
| Conservation status | Least Concern | Least Concern |
| Population trend | Stable | Decreasing |
| Habitat | Forest and mountains | Desert and forest |
Northern Pygmy-Owl vs Elf Owl: common questions
Which is smaller, the northern pygmy-owl or the elf owl?
The elf owl is smaller, measuring only about 12 to 14 centimetres and making it the smallest owl species in the world, while the northern pygmy-owl, though still tiny compared to most owls, is noticeably larger than the elf owl.
How does the northern pygmy-owl hunt prey larger than itself?
This species relies on boldness and surprise rather than size, using a false pair of eye markings on the back of its head that may help confuse mobbing birds and predators while it aggressively targets birds and mammals considerably larger relative to its own small body than the elf owl, which feeds mostly on insects, ever attempts.
Why does the elf owl depend so heavily on saguaro cacti?
This species cannot excavate its own nest cavity, so it depends entirely on old woodpecker holes, especially those carved into saguaro cacti across the Sonoran Desert, a dependency the northern pygmy-owl does not share since it nests in ordinary tree cavities across forest and mountain habitat instead.