Picumnus castelnau
Silhouette: Pepe Reigada · PhyloPic
In 3 days <5% in a week ~10%
The plain-breasted piculet (Picumnus castelnau) is a species of bird in subfamily Picumninae of the woodpecker family Picidae. It is found in the Brazil, Colombia, and Peru. The plain-breasted piculet is monotypic. Its position within genus Picumnus is not positively known, but some authors consider it and the fine-barred piculet (P. subtilis) to be sister species and they might hybridize.
The plain-breasted piculet is 8 to 10 cm (3.1 to 3.9 in) long and weighs about 11 to 12 g (0.39 to 0.42 oz). Adult males have a black crown with red tips on the feathers. The sides of their crown and their nape are whitish with faint black speckles or bars. Their face is mostly light brown with some gray and whitish vermiculation. Their upperparts are grayish olive. Their flight feathers are brown with greenish yellow edges on the secondaries. Their tail is black; the innermost pair and outer three pairs of feathers have white inner webs. Their underparts are unmarked dull yellowish white. Their iris is brown, the beak black with a blue-gray base to the mandible, and the legs greenish yellow to bluish gray. Adult females are identical but with an entirely... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amacayacu National Natural Park | 🇨🇴 Colombia |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Plain-breasted Piculet sighting in Amacayacu National Natural Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 419th most-seen of the 436 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Plain-breasted Piculet in Amacayacu National Natural Park on a given day, so our monthly data shows no clear season.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Plain-breasted Piculet sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Amacayacu National Natural Park, in our data
Amacayacu National Natural Park is the only park on Wallace's Line with enough records to rate Plain-breasted Piculet sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Picidae
The closest relatives of the Plain-breasted Piculet that you can see in Amacayacu National Natural Park (family Picidae, Woodpeckers) are Yellow-tufted Woodpecker (about 20%), Crimson-crested Woodpecker (about 20%) and Cream-colored Woodpecker (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Plain-breasted Piculet is recorded against all the birds logged in Amacayacu National Natural Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
