Published by Paul Ivinskas
Thursday, October 22, 2026
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Wildlife & plants guides

Spring: migration and rain-dependent flowers

At Bear River refuge, the published seasonal account places shorebird passage broadly in April and the first half of May.

At Bear River refuge, the published seasonal account places shorebird passage broadly in April and the first half of May. In Arches, NPS describes April and May as generally favorable wildflower months, with displays depending strongly on precipitation. Some seasons bring little bloom. These are two local examples, not a single spring schedule for Utah.

To see the difference between places, compare a bird's changing presence with a plant's flowering window using the profiles for the Bear River refuge birds and the sego lily. Note the date, the broad habitat and how sure you are, and leave sensitive locations out. Treat every window as a general seasonal pattern.

Profiles to read with this guide

American avocets with raised wings at Bear River Migratory Bird Refuge
File photo: American avocets with raised wings at Bear River Migratory Bird Refuge. Photo: U.S. Fish and Wildlife Service · Public domain · Wikimedia Commons
Birds

Bear River refuge birds

Read the refuge as a changing set of habitats, from shallow feeding flats to marsh cover and deeper water.

A sego lily flower on a slender stalk above low desert vegetation
File photo: A sego lily flower on a slender stalk above low desert vegetation — Johnson Lakes Canyon, Kane County, May 2016. Photo: Andrey Zharkikh from Salt Lake City, USA · CC BY 2.0 · Wikimedia Commons
Wildflowers

Sego lily

Utah's state flower briefly lifts a three-petaled cup above open, dry-country vegetation before its aboveground growth fades.

Calochortus nuttallii

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