The causeway over to the island has shorebirds along the side of the road. The park itself has grassland birds like Sage Sparrow and Sage Thrasher. August sees spectacular numbers of waterfowl and shorebirds at Bear River Migratory Bird Refuge at the north end of the Great Salt Lake. Birding has recovered nicely since the floods of the mid-1980s. Riparian areas along the Green River are productive as well.
Waterbirds are the specialty here.
Be sure to scan the water's edge around Pelican Lake. The Cache Valley near Logan and nearby forest are amazing. You may find Williamson's Sapsucker, Three-toed Woodpecker Pine Grosbeak and Red Crossbill, Virginia's Warbler and Calliope Hummingbirds. Drive up the Mill Creek Canyon. N 106.50 W Wintertime is when you will find thousands of Snow Geese, Sandhill Cranes and maybe even a Ross' Goose.