Spring (March 1 - May 31)
Summer (June 1 - July 31)
Autumn (August 1 - November 30)
Winter (December 1 - 31)

After 14 years of collecting data on Michigan spring arrivals of Ruby-throated Hummingbirds, the original project objectives have been met, which included obtaining a good database of spring arrivals for every county. So mapping is no longer being done (and it is a very labor intensive process), but two other sources of spring arrivals here are provided below. However, if you do happen to observe a hummingbird before April 15 in the Lower Peninsula, or April 20 in the Upper Peninsula, please send me an email, and if possible a photo. Thank you!

Spring 2016

Two reliable and vetted sources of hummingbird data (click maps for more detail):

 

Hummingbirds.net    Data through March 31, 2016	eBird Data through March 31, 2016
Hummingbirds.net    Data through April 11, 2016	eBird Data through April 11, 2016
Hummingbirds.net    Data through April 20, 2016 Date County Location 8-Apr-16 Livingston Brighton 9-Apr-16 Lapeer Columbiaville 10-Apr-16 Livingston Brighton 10-Apr-16 Kent Rockford 10-Apr-16 Wayne Plymouth 11-Apr-16 Macomb Macomb   12-Apr-16 Muskegon Twin Lake 14-Apr-16 Calhoun Marshall 14-Apr-16 Livingston Brighton 15-Apr-16 Allegan Hopkins 15-Apr-16 Berrien Niles 15-Apr-16 Branch Bronson 15-Apr-16 Kent Cedar Springs 15-Apr-16 Ottawa Grand Haven 16-Apr-16 Jackson Brooklyn 16-Apr-16 Kent Jenison 16-Apr-16 Livingston Howell 16-Apr-16 Oakland Lake Orion 16-Apr-16 Wexford Cadillac 17-Apr-16 Allegan Allegan 17-Apr-16 Alpena Hillman 17-Apr-16 Jackson Brooklyn 17-Apr-16 Manistee Wellston 17-Apr-16 Newaygo White Cloud 17-Apr-16 Wayne Grosse Pointe Farms 17-Apr-16 Wexford Manton 18-Apr-16 Allegan Dorr 18-Apr-16 Macomb Macomb Twp. 18-Apr-16 Saginaw Saginaw 18-Apr-16 Washtenaw Ann Arbor 19-Apr-16 Oakland Novi 19-Apr-16 Ottawa Spring Lake 19-Apr-16 Van Buren Mattawan 19-Apr-16 Wayne Livonia 19-Apr-16 Wayne Taylor	eBird Data through April 20, 2016
Hummingbirds.net    Data through April 30, 2016	eBird Data through April 30, 2016
Hummingbirds.net   Data through May 15, 2016	eBird Data through May 15, 2016

Autumn 2016