Common Loon
Fast Facts Scientific Name: Gavia immerCommon Name: Common Loon, Great Northern Loon, Great Northern DiverLifespan: 25-30 yearsSize: 30-35 inches longWeight: 10-14 poundsWingspan: 55 inchesConservation Status: Least concern Common Loon Identification These birds are relatively easy to identify with their distinctive, streamlined shape and long, thick, dagger-like black bills. Genders are similar with a black head and neck that can show an iridescent greenish or green-blue sheen in good light and a wedge-shaped collar of vertical black and white stripes....