Myiodynastes luteiventris
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~20% in a week ~40%
The sulphur-bellied flycatcher (Myiodynastes luteiventris) is a large member of the family Tyrannidae, the tyrant flycatchers. It is regularly found from southern Arizona in the United States south to Bolivia and occurs casually or as a vagrant further north, east, and south of its usual range.
The sulphur-bellied flycatcher is monotypic. Because there is much clinal variation in size and plumage, several subspecies have been proposed but not accepted. The sulphur-bellied flycatcher and the streaked flycatcher (M. maculatus) are sister species.
The sulphur-bellied flycatcher is about 20 cm (7.9 in) long and weighs about 40 to 57 g (1.4 to 2.0 oz). The sexes have the same plumage. Adults have a pale hoary gray or grayish white forecrown and supercilium. They have a brownish gray to olive crown with blackish streaks and a large, usually hidden, canary-yellow patch in the center. They have dusky lores; the color extends to the ear coverts and forms a dark "mask". Below the mask is a wide white stripe with thin dusky streaks and below that a thin dusky stripe. Their nape and upperparts to the upper rump are light olive with a buffy tinge... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Pedro Sula | 🇭🇳 Honduras | |
| 2 | Monterrey | 🇲🇽 México | |
| 3 | San Salvador | 🇸🇻 El Salvador | |
| 4 | San José | 🇨🇷 Costa Rica | |
| 5 | Bogota | 🇨🇴 Colombia | |
| 6 | Miami | 🇺🇸 United States | |
| 7 | Mexico City | 🇲🇽 México | |
| 8 | Quito | 🇪🇨 Ecuador | |
| 9 | Medellín | 🇨🇴 Colombia | |
| 10 | Panama City | 🇵🇦 Panama |
With luck
About 10% of wildlife watchers report a Sulphur-bellied Flycatcher sighting in Monterrey on a given day, based on 110 verified sightings from GBIF citizen-science data. It is the 71st most-seen of the 207 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Sulphur-bellied Flycatcher in Monterrey on a given day, against under 5% in September to March, the lowest months. That is one of Monterrey's wettest months, with about 95 mm of rain against 20 mm in February.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Sulphur-bellied Flycatcher sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 18 cities where we can rate Sulphur-bellied Flycatcher sightings, Monterrey ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in San Pedro Sula (Honduras, about 10%).
Same family: Tyrannidae
The closest relatives of the Sulphur-bellied Flycatcher that you can see in Monterrey (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 80%), Tropical Kingbird (about 50%) and Couch's Kingbird (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulphur-bellied Flycatcher is recorded against all the birds logged in Monterrey (110 verified sightings), 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.
