Parkerthraustes humeralis
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The yellow-shouldered grosbeak (Parkerthraustes humeralis) is a species of bird in the family Thraupidae, the tanagers and allies. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru. The yellow-shouldered grosbeak was formally described in 1867 by the American amateur ornithologist George Newbold Lawrence. He coined the Latin name Pytilus (Caryothraustes) humeralis. Following information from molecular genetics the species was moved from genus Caryothrautes to its own genus Parkerthraustes in 1997 by James Van Remsen Jr., to honor the late ornithologist Theodore A. Parker III. The specific epithet humeralis is Late Latin, meaning "of the shoulders".
The yellow-shouldered grosbeak was long considered a member of the cardinal family Cardinalidae. It was moved to the tanager family based on the results of a molecular phylogenetic study published in 2007. It shares the subfamily Orchesticinae with the brown tanager (Orchesticus abeillei).
The yellow-shouldered grosbeak is the only member of its genus and has no subspecies. The yellow-shouldered grosbeak is 16 to 16.5 cm (6.3 to 6.5 in) long; three individuals weighed 31 to 37 g... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a Yellow-shouldered Grosbeak sighting in Yasuní National Park on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 472nd most-seen of the 533 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Yellow-shouldered Grosbeak in Yasuní National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Yellow-shouldered Grosbeak sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Yellow-shouldered Grosbeak sightings, Yasuní National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Tambopata National Reserve (Peru, under 5%).
Same family: Thraupidae
The closest relatives of the Yellow-shouldered Grosbeak that you can see in Yasuní National Park (family Thraupidae, Tanagers and Allies) are Blue-gray Tanager (about 40%), Palm Tanager (about 40%) and Red-capped Cardinal (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow-shouldered Grosbeak is recorded against all the birds logged in Yasuní National Park (21 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.
