Icterus bullockii
Silhouette: Matt Wilkins · PhyloPic
In 3 days ~40% in a week ~70%
Bullock's oriole (Icterus bullockiorum, also known as Icterus bullockii) is a small New World blackbird. At one time, this species and the Baltimore oriole were considered to be a single species, the northern oriole. This bird is named after William Bullock, an English amateur naturalist.
Bullock's orioles are sexually dimorphic, with males being more brightly colored than females. In addition, adult males tend to be slightly larger and heavier than females. Measurements: Length: 6.7–7.5 inches (17–19 cm)
Weight: 1.0–1.5 ounces (28–43 g) Wingspan: 12.2 inches (31 cm) Adults have a pointed bill with a straight culmen. In adult males, the tail is long, square, and jet black. All exposed skin is black, as are the claws and bill, though the base of the lower mandible lightens to bluish-gray.
Adult males are characterized by contrasting yellow-orange and black plumage, a black throat patch, and a white wing patch on the wing coverts. The underparts, breast, and face are orange or yellow; by contrast, the back, wings, and tail are black. A black line extends from each eye to the black crown. Adult females, by contrast, have gray-brown upperparts, duller yellow on the breast... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 3 | Death Valley National Park | 🇺🇸 United States | |
| 4 | Yosemite National Park | 🇺🇸 United States | |
| 5 | Big Bend National Park | 🇺🇸 United States | |
| 6 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico | |
| 7 | Saguaro National Park | 🇺🇸 United States | |
| 8 | Joshua Tree National Park | 🇺🇸 United States | |
| 9 | Grand Teton National Park | 🇺🇸 United States | |
| 10 | Channel Islands National Park | 🇺🇸 United States | |
| 11 | Grand Canyon National Park | 🇺🇸 United States | |
| 12 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 13 | Badlands National Park | 🇺🇸 United States | |
| 14 | Cañón del Sumidero National Park | 🇲🇽 Mexico | |
| 15 | El Vizcaíno Biosphere Reserve | 🇲🇽 Mexico | |
| 16 | Yellowstone National Park | 🇺🇸 United States | |
| 17 | Redwood National Park | 🇺🇸 United States | |
| 18 | Rocky Mountain National Park | 🇺🇸 United States | |
| 19 | Great Bear Rainforest | 🇨🇦 Canada | |
| 20 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guadalajara | 🇲🇽 México | |
| 2 | Toluca | 🇲🇽 México | |
| 3 | Puebla | 🇲🇽 México | |
| 4 | Salt Lake City | 🇺🇸 United States | |
| 5 | Mexico City | 🇲🇽 México | |
| 6 | Tijuana | 🇲🇽 México | |
| 7 | Denver | 🇺🇸 United States | |
| 8 | Sacramento | 🇺🇸 United States | |
| 9 | Los Angeles | 🇺🇸 United States | |
| 10 | Las Vegas | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Tracy Aviary | 🇺🇸 United States | |
| 2 | Bloedel Conservatory | 🇨🇦 Canada | |
| 3 | Seaside Seabird Sanctuary | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Bullock's Oriole sighting in Guadalajara on a given day, based on 189 verified sightings from GBIF citizen-science data. It is the 40th most-seen of the 184 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
October and December
In those months about 30% of wildlife watchers report a Bullock's Oriole in Guadalajara on a given day, against under 5% in May to August, the lowest months. Those are among Guadalajara's driest months, with about 30 mm of rain a month against 210 mm in July.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Bullock's Oriole sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 24 cities where we can rate Bullock's Oriole sightings, Guadalajara has the highest daily chance: about 20%. Next come Toluca (México, about 10%) and Puebla (México, about 10%).
Same genus: Icterus
The closest relatives of the Bullock's Oriole that you can see in Guadalajara (genus Icterus, New World Orioles) are Streak-backed Oriole (about 30%) and Hooded Oriole (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bullock's Oriole is recorded against all the birds logged in Guadalajara (189 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.
