The days are getting longer, the snow is melting in the foothills, and the first wildflowers are beginning to bloom—these are sure signs that spring is on its way to the Treasure Valley! Another exciting sign? The return of migratory birds making their way north. Here’s what to expect in the coming weeks and how you can prepare your backyard to welcome these feathered travelers.
Early Spring Arrivals (March – April)
- Tree Swallows – One of the first insect-eaters to return, these sleek, blue-backed birds will begin swooping over open fields and waterways by late March.
- American Robins – While some robins stay year-round, their numbers swell in early spring as migrating flocks arrive. Listen for their cheerful songs in the morning!
- Western Bluebirds – These stunning blue-and-rust songbirds begin nesting in nest boxes and cavities in early April.
Mid-Spring Migration (Late April – May)
- Rufous Hummingbirds – These fiery-orange hummingbirds pass through the Treasure Valley on their way north. Set out nectar feeders by mid-April to attract them!
- Yellow Warblers – Bright yellow and full of energy, these warblers will soon be flitting through trees and shrubs, especially near water.
- Ospreys – These fish-eating raptors return to nesting platforms and poles near Boise’s rivers and reservoirs by mid-April.
Peak Migration & Late Spring Arrivals (May – Early June)
- Bullock’s Orioles – These flashy orange-and-black birds arrive in early May. Hang nectar feeders or orange halves to bring them to your yard!
- Lazuli Buntings – These brilliantly blue songbirds make their way to Idaho in May, often found in shrubby habitats and backyards with sunflower seeds.
- Swainson’s Hawks – Look up to see these long-distance travelers soaring overhead. They migrate thousands of miles from South America to nest in Idaho’s open spaces.
How to Attract Migratory Birds to Your Yard
Want to make your backyard a rest stop for these amazing birds? Here’s how:
✔️ Nectar Feeders – Put out hummingbird feeders in early April to catch migrating Rufous Hummingbirds and later Bullock’s Orioles.
✔️ Mealworms & Suet – Protein-rich foods like mealworms and suet cakes will attract insect-loving birds such as bluebirds and warblers.
✔️ Varied Seed Mixes – Offer black-oil sunflower seeds and safflower seed in elevated feeders to attract buntings, finches, and orioles.
✔️ Fresh Water Sources – A birdbath or dripper will draw in thirsty migrants looking to refuel during their journey.
Best Local Birding Spots for Migration Watching
If you want to catch even more spring migration action, visit these prime locations:
📍 Kathryn Albertson Park – A hotspot for warblers, orioles, and migrating songbirds.
📍 The Boise River Greenbelt – Keep an eye out for returning Ospreys and swallows along the water.
📍 Deer Flat National Wildlife Refuge – This is a must-visit for waterfowl migration and raptor sightings.
By preparing your yard with the right food, water, and shelter, you can turn it into a haven for spring migrants while enjoying the beauty and excitement of their return.
🌸 Spring is here—get ready to welcome the birds back! 🐦