Woodhouse's Scrub-Jay: The Loud Blue Lookout of Arches National Park

Most people come to Arches for the rock. Fair enough. But walk any trail through the pinyon and juniper and sooner or later a long-tailed, blue-and-gray bird will land on a high branch, look you over, and announce your arrival to everyone within a quarter mile. That's Woodhouse's scrub-jay, and late fall and winter are a good time to meet one.

A Woodhouse's scrub-jay on a pinyon branch, Grand County, Utah. Main image: photo by Joey Bom, CC BY 4.0, via iNaturalist, cropped, with text added.

Scrub-jays live in the park's pinyon-juniper woodland all year (NPS). They're active by day, and they don't hide much, which helps. Still, they're wild birds with their own plans, so treat any sighting as a bonus rather than a promise.

How to Recognize It

Woodhouse's scrub-jay (Aphelocoma woodhouseii) is a lanky jay about 11 to 12 inches long, with a long, floppy tail and a straight, pointed bill (All About Birds). It's dull blue on the head, wings, and tail, grayer on the back, and light gray underneath, with a paler throat and only a hint of a blue band across the chest (Audubon).

The head is round, with no crest. That's the quickest way to rule out a Steller's jay (All About Birds). Don't count on the blue, though. Depending on the light, these birds can look plain gray or almost dark.

Listen, too. The call is a loud, harsh "jree," and a bird in flight may give a run of "check" notes (Audubon). The flight itself looks a little underpowered: a few flaps, then a glide (All About Birds).

A Woodhouse's scrub-jay on a pinyon branch, Grand County, Utah. Photo: Joey Bom, CC BY 4.0, via iNaturalist.

Where and When to Look in Arches

Look wherever pinyon pines and junipers grow, since that's the habitat the park lists for scrub-jays (NPS). Bare slickrock and open grassland aren't the places. In practice, most of the park's scrub-jay records come from Devils Garden and the Delicate Arch Trail, judging by iNaturalist observations, so an early walk out toward Landscape Arch or up the Delicate Arch route puts you in the right trees.

They're around all year, but observers in the park record them most often from late summer through early spring. That puts the coming months right in the window. That's when people in the park reported them most, which doesn't mean they're harder to find the rest of the year. Check the tops of trees and dead snags first. Scrub-jays like a high lookout perch where they can see what's coming (All About Birds).

A Woodhouse's scrub-jay on red sandstone among junipers. Observed in Moab, UT, on September 4, 2022. Photo: annie, CC BY 4.0, via iNaturalist.

What It's Doing This Time of Year

Fall is when a scrub-jay's menu changes. In spring and summer it eats mostly insects and fruit. In fall and winter it switches to nuts and seeds, including juniper berries and pine nuts (All About Birds). It can't crack open a closed pinyon cone, but once the scales part, its thin, straight bill can reach in and pull the nuts out.

Scrub-jays also gather food and bury it, apparently so they can come back for it later (Audubon). If you see one poking at the ground and then hopping away looking pleased with itself, that may be what's happening.

Pairs stay together all year on a permanent territory (Audubon). Birds without a territory of their own form flocks outside the breeding season, so in winter you might see several together (All About Birds).

One bit of trivia: until 2016, this bird and the California scrub-jay were counted as one species. It's named for Samuel Woodhouse, a doctor and naturalist who explored the Southwest around 1850 (Audubon).

Perched in a juniper, showing the blue wings and tail against a gray back. Observed in Grand County, UT, on March 15, 2023. Photo: Anders Hastings, CC BY 4.0, via iNaturalist.

Watching It Responsibly

Scrub-jays are bold, and a bold bird near a picnic table is a bird that's learned something. Don't feed it, and secure your food and trash so that it and the ravens can't get into either (NPS). It's illegal to feed, touch, tease, frighten, or intentionally disturb wildlife in a National Park (NPS).

Arches asks you to watch wildlife quietly and from a safe distance. The Park Service's general rule is at least 25 yards from most animals, and if an animal changes what it's doing because of you, you're too close (NPS). Binoculars help a lot here. Skip the flash and don't play recorded calls to pull a bird in.

A Woodhouse's scrub-jay perched on a wooden post. Observed in Grand County, UT, USA on March 17, 2017. Photo: Joe D, CC0, via iNaturalist.

A Woodhouse's scrub-jay perched on a rust-colored fence post. Observed in Arches National Park, Moab, UT, US on December 1, 2021. Photo: Caleb Catto, CC BY 4.0, via iNaturalist.

Worth the Stop

A scrub-jay won't make anyone's list of Arches highlights. But on a cold morning when the arches are in shadow and the trail is quiet, a blue bird yelling at you from a juniper is good company.

The scrub-jay is one of 14 animals profiled in the wildlife chapter of my Arches National Park guide, along with where and when to look for each and nine itineraries for one to three days. For the park's own overview, see its Animals page.

Before you go: see Arches National Park alerts and current conditions, checked daily, for current closures and what they mean for your trip.

This is an independent guide. It is not affiliated with or endorsed by the National Park Service. Conditions change; check the park's current alerts before you go.