Blue-gray Gnatcatcher

Blue-gray Gnatcatcher

Polioptila caerulea

Silhouette: Sheatherius · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability <5% · Rare
at Reserva de la Biosfera Mariposa Monarca
13 Verified sightings at Reserva de la Biosfera Mariposa Monarca From 2019 to 2026
34,007 Verified sightings across all 28 parks From 2019 to 2026
October Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Blue-gray Gnatcatcher

The blue-gray gnatcatcher (Polioptila caerulea) is a very small gnatcatcher native to North America. It is 10–13 cm (3.9–5.1 in) in length, 6.3 in (16 cm) in wingspan, and weighing only 5–7 g (0.18–0.25 oz). Adult males are blue-gray on the upperparts with white underparts, slender dark bill, and a long black tail edged in white. Females are less blue, while juveniles are greenish-gray. Both sexes have a white eye ring.

The blue-gray gnatcatcher's breeding habitat includes open deciduous woods and shrublands in southern Ontario, the eastern and southwestern United States, and Mexico. Though gnatcatcher species are common and increasing in number while expanding to the northeast, it is the only one to breed in Eastern North America. They migrate to the southern United States, Mexico, northern Central America (Belize, Guatemala, and Honduras), Cuba, the Bahamas, the Turks and Caicos Islands, and the Cayman Islands.

Blue-gray gnatcatchers prefer humid areas with large leaves, woodlands, and more open sandy areas with sparse trees where they mainly eat insects, insect eggs, and spiders. The males often work to build... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Arrecifes de Cozumel National Park 🇲🇽 Mexico
~70%
2 Big Cypress National Preserve 🇺🇸 United States
~60%
3 Point Pelee National Park 🇨🇦 Canada
~60%
4 Congaree National Park 🇺🇸 United States
~50%
5 Everglades National Park 🇺🇸 United States
~50%
6 Cabo Pulmo National Park 🇲🇽 Mexico
~50%
7 Cañón del Sumidero National Park 🇲🇽 Mexico
~40%
8 Bahía de Loreto National Park 🇲🇽 Mexico
~40%
9 Ciénaga de Zapata 🇨🇺 Cuba
~30%
10 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico
~30%
11 Biotopo Cerro Cahuí 🇬🇹 Guatemala
~20%
12 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
~20%
13 Shenandoah National Park 🇺🇸 United States
~20%
14 Tikal National Park 🇬🇹 Guatemala
~20%
15 Calakmul Biosphere Reserve 🇲🇽 Mexico
~10%
16 El Triunfo 🇲🇽 Mexico
~10%
17 Joshua Tree National Park 🇺🇸 United States
~10%
18 Montes Azules Biosphere Reserve 🇲🇽 Mexico
~10%
19 Celestún Biosphere Reserve 🇲🇽 Mexico
~10%
20 Saguaro National Park 🇺🇸 United States
<5%
21 Yosemite National Park 🇺🇸 United States
<5%
22 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
<5%
23 Pico Bonito National Park 🇭🇳 Honduras
<5%
24 Sian Ka'an Biosphere Reserve 🇲🇽 Mexico
<5%
25 Cockscomb Basin Wildlife Sanctuary 🇧🇿 Belize
<5%
26 Acadia National Park 🇺🇸 United States
<5%
27 Lago de Yojoa 🇭🇳 Honduras
Insufficient data
28 Cerro Azul Meámbar National Park 🇭🇳 Honduras
Insufficient data

Quick answers

What are the chances of seeing a Blue-gray Gnatcatcher in Reserva de la Biosfera Mariposa Monarca?

Under 5% of wildlife watchers report a Blue-gray Gnatcatcher sighting in Reserva de la Biosfera Mariposa Monarca, based on 13 verified sightings from GBIF citizen-science data.

When is the best time to see Blue-gray Gnatcatcher in Reserva de la Biosfera Mariposa Monarca?

October has the highest sighting rate for Blue-gray Gnatcatcher in Reserva de la Biosfera Mariposa Monarca in our monthly data.

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