Geothlypis tolmiei
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~50%
MacGillivray's warbler (Geothlypis tolmiei) is a species of bird in the family Parulidae, the New World warblers. It is found from southeastern Alaska and western Canada to Panama. MacGillivray's warbler was formally described by John Townsend in 1839 with the binomial Sylvia Tolmiei [sic] and the English name "Tolmie's Warbler". He drew on paintings in Audubon's Birds of America, in which Audubon had confused it with what was later named the mourning warbler (Geothlypis philadelphia). Townsend's names honor his friend William Fraser Tolmie. MaGillivray's and the mourning warblers are sister species and hybridize extensively. Audubon gave the species its current English name to honor William MacGillivray.
MacGillivray's warbler was long assigned to the genus Oporornis. The American Ornithological Society moved it to its present genus Geothlypis in 2011. The IOC made the change in 2012, BirdLife International's Handbook of the Birds of the World (HBW) in 2016, and the Clements taxonomy by 2018.
However, the further taxonomy of MacGillivray's warbler is unsettled. Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Luis Potosí | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México | |
| 3 | Guadalajara | 🇲🇽 México | |
| 4 | Guatemala City | 🇬🇹 Guatemala | |
| 5 | Puebla | 🇲🇽 México | |
| 6 | Phoenix | 🇺🇸 United States | |
| 7 | Mesa | 🇺🇸 United States | |
| 8 | Las Vegas | 🇺🇸 United States | |
| 9 | Washington | 🇺🇸 United States | |
| 10 | Salt Lake City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a MacGillivray's Warbler sighting in San Luis Potosí on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 50th most-seen of the 62 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
April
In that month about 20% of wildlife watchers report a MacGillivray's Warbler in San Luis Potosí on a given day, against under 5% in November and December, the lowest months. That is one of San Luis Potosí's driest months, with about 5 mm of rain against 110 mm in July. March and June–October have too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most MacGillivray's Warbler sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 28 cities where we can rate MacGillivray's Warbler sightings, San Luis Potosí has the highest daily chance: about 10%. Next come Mexico City (México, about 10%) and Guadalajara (México, about 10%).
Same family: Parulidae
The closest relatives of the MacGillivray's Warbler that you can see in San Luis Potosí (family Parulidae, New World Warblers) are Yellow-rumped Warbler (about 40%), Audubon's Warbler (about 20%) and Wilson's Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the MacGillivray's Warbler is recorded against all the birds logged in San Luis Potosí (6 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.
