Yellow-faced Grassquit
Tiaris olivaceus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyThraupidae (Tanagers and Allies)
- GenusTiaris
- SpeciesTiaris olivaceus (Yellow-faced Grassquit)
The yellow-faced grassquit (Tiaris olivaceus) is a passerine bird in the tanager family Thraupidae and is the only member of the genus Tiaris. It is native to Central America, South America, and the Caribbean. Wikipedia →
5–10% of wildlife watchers report a Yellow-faced Grassquit sighting in Calakmul Biosphere Reserve, based on 53 days of visitor records from GBIF citizen-science data.
Closest Relatives at Calakmul Biosphere Reserve
Black-headed Saltator
Saltator atriceps
Morelet's Seedeater
Sporophila morelleti
Gray-headed Tanager
Eucometis penicillata
Blue-gray Tanager
Thraupis episcopus
Yellow-winged Tanager
Thraupis abbas
Cinnamon-bellied Saltator
Saltator grandis
Red-legged Honeycreeper
Cyanerpes cyaneus
Blue-black Grassquit
Volatinia jacarina
Black-throated Shrike-Tanager
Lanio aurantius
Thick-billed Seed-Finch
Sporophila funerea
Buff-throated Saltator
Saltator maximus
Brown Jay
Psilorhinus morio
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Yellow-faced Grassquit in Calakmul Biosphere Reserve?
About 6% of wildlife watchers report a Yellow-faced Grassquit sighting in Calakmul Biosphere Reserve, based on 53 days of visitor records from GBIF citizen-science data.
When is the best time to see Yellow-faced Grassquit in Calakmul Biosphere Reserve?
August has the highest sighting rate for Yellow-faced Grassquit in Calakmul Biosphere Reserve in our monthly data.