The robin was designated the official state bird of Michigan in 1931 after an election held by the Michigan Audubon Society. The legislation noted that "the robin redbreast is the best known and best loved of all the birds in the state of Michigan." The robin is also the state bird of Connecticut and Wisconsin.

Robins were named by early settlers after the familiar robin red-breast of Europe (a bird with similar markings that is not closely related to the American Robin). The most widespread thrush in North America (because of its adaptation to human-modified habitats), robins are a familiar backyard bird often observed pulling up earthworms on suburban lawns. The American robin has many vocalizations - rich songs composed of long phrases and "whinny" and "tut" calls. The female is muted in color compared to the male.

The robin's claim to the title of official state bird of Michigan has come under fire however. In late 2003 a group of 3rd, 4th, & 5th graders arrived at the state capital to lobby for the Kirtland's Warbler as the state bird of Michigan. Some of their reasons: the Kirtland's Warbler nests exclusively in Michigan, it is the rarest warbler in North America, and has recovered from near-extinction (expected to be removed from endangered species list soon) thanks to conservation efforts to preserve their only habitat , Michigan's Jack Pine Barrens.

Source:

State Symbols: Michigan.gov
Kirtland's Warbler for Mich State Bird? - Michigan Audobon
Getting to know Michigan: Michigan Legislature
American robin: All about Birds - Cornell Lab of Ornithology
American robin: Student Questions - Expert answers
American Robin photo © Richard Mousel / CritterZone:
Animal - Wildlife - Nature Stock Photography
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Links:

American robin - Turdus migratorius: USGS
Michigan State Symbols: Discover Michigan
State Birds - 50 states List
National Bird