Leiothlypis luciae
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~40%
Lucy's warbler (Leiothlypis luciae) is a small New World warbler found in North America. This species ranges includes southwestern United States and northwestern Mexico. It is one of only two warblers to nest in cavities.
Lucy's warbler is the smallest species of New World warbler. It measures from 9 to 12 cm (3.5 to 4.7 in) in length and can weigh from 5.1 to 7.9 g (0.18 to 0.28 oz), thus being slightly smaller even than the warblers formerly placed in the genus Parula. Among standard measurements, the wing chord is 49 to 61 mm (1.9 to 2.4 in), the tail is 33 to 41 mm (1.3 to 1.6 in), the bill is 7.8 to 9 mm (0.31 to 0.35 in) and the tarsus is 15 to 17.5 mm (0.59 to 0.69 in).
It is rather undistinguished compared to other wood-warblers, being perhaps the palest species in its family. Its head and upperparts are pale gray, while the underparts are whitish. It has a white eyering and a small, pointed bill. Both genders have a rufous rump, a diagnostic field mark. Adult males also have a small rusty patch on their crown. Juveniles are paler, with a tawny rump and buffy wingbars.
Lucy's warbler is closely related to Virginia's warbler, Nashville warbler and Colima warbler... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Death Valley National Park | 🇺🇸 United States | |
| 2 | Saguaro National Park | 🇺🇸 United States | |
| 3 | Zion National Park | 🇺🇸 United States | |
| 4 | Big Bend National Park | 🇺🇸 United States | |
| 5 | Grand Canyon National Park | 🇺🇸 United States | |
| 6 | El Vizcaíno Biosphere Reserve | 🇲🇽 Mexico | |
| 7 | Bahía de Loreto National Park | 🇲🇽 Mexico | |
| 8 | Channel Islands National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Phoenix | 🇺🇸 United States | |
| 2 | Mesa | 🇺🇸 United States | |
| 3 | Guadalajara | 🇲🇽 México | |
| 4 | Las Vegas | 🇺🇸 United States | |
| 5 | San Diego | 🇺🇸 United States | |
| 6 | San Francisco | 🇺🇸 United States | |
| 7 | Los Angeles | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Lucy's Warbler sighting in Big Bend National Park on a given day, based on 328 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 103rd most-seen of the 270 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.
March to June
In those months about 10% of wildlife watchers report a Lucy's Warbler in Big Bend National Park on a given day, against under 5% in July to February, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Lucy's Warbler sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 8
Of the 8 parks where we can rate Lucy's Warbler sightings, Big Bend National Park ranks 4th at about 10%. The best odds are in Death Valley National Park (United States, about 20%), Saguaro National Park (United States, about 20%) and Zion National Park (United States, about 10%).
Same genus: Leiothlypis
The closest relatives of the Lucy's Warbler that you can see in Big Bend National Park (genus Leiothlypis, Leiothlypis Warblers) are Colima Warbler (about 10%), Orange-crowned Warbler (about 10%) and Nashville Warbler (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lucy's Warbler is recorded against all the birds logged in Big Bend National Park (328 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.
