Loons · bird group
Loons: arrival and departure dates by state
Loons reach District of Columbia first, around mid March, and Massachusetts last, around late September. Pick your state below for exact arrival, peak and departure dates.
| State | First arrivals | Most gone by | Peak % |
|---|---|---|---|
| District of Columbia | Mar 15-21 | May 22-31 | 2.5% |
| Michigan | Mar 15-21 | Nov 22-30 | 7.3% |
| Pennsylvania | Mar 15-21 | May 15-21 | 5.0% |
| Wisconsin | Mar 15-21 | Dec 1-7 | 7.6% |
| Minnesota | Mar 22-31 | Nov 8-14 | 9.9% |
| Colorado | Oct 15-21 | Dec 1-7 | 4.8% |
| Nebraska | Oct 1-7 | Dec 8-14 | 2.1% |
| New Jersey | Oct 1-7 | May 8-14 | 8.4% |
| New York | Oct 1-7 | May 1-7 | 7.3% |
| South Dakota | Oct 1-7 | Nov 22-30 | 3.7% |
| Utah | Oct 1-7 | Dec 1-7 | 5.0% |
| Wyoming | Oct 1-7 | Dec 1-7 | 6.6% |
| Delaware | Oct 8-14 | Apr 15-21 | 9.8% |
| Iowa | Oct 8-14 | Dec 8-14 | 7.4% |
| Nevada | Oct 8-14 | Mar 1-7 | 3.3% |
| Rhode Island | Oct 8-14 | Apr 8-14 | 20% |
| Connecticut | Oct 15-21 | Apr 15-21 | 11% |
| Kansas | Oct 15-21 | Jan 8-14 | 3.9% |
| Kentucky | Oct 15-21 | Feb 1-7 | 4.0% |
| Maryland | Oct 15-21 | May 1-7 | 6.3% |
| Missouri | Oct 15-21 | Jan 15-21 | 4.3% |
| New Hampshire | Oct 15-21 | Jan 15-21 | 10% |
| Ohio | Oct 15-21 | Jan 1-7 | 7.8% |
| West Virginia | Oct 15-21 | Jan 8-14 | 2.7% |
| New Mexico | Oct 22-31 | Jan 22-31 | 1.1% |
| Oklahoma | Oct 22-31 | Apr 8-14 | 4.7% |
| Tennessee | Oct 22-31 | Apr 1-7 | 8.6% |
| Virginia | Oct 22-31 | Apr 15-21 | 4.6% |
| Alabama | Nov 1-7 | Apr 22-30 | 5.3% |
| Arkansas | Nov 1-7 | Apr 1-7 | 3.3% |
| Georgia | Nov 1-7 | Apr 8-14 | 2.4% |
| Mississippi | Nov 1-7 | Apr 8-14 | 9.9% |
| North Carolina | Nov 1-7 | Apr 15-21 | 3.9% |
| Florida | Nov 8-14 | Apr 15-21 | 2.9% |
| Louisiana | Nov 8-14 | Apr 1-7 | 2.8% |
| South Carolina | Nov 8-14 | Apr 1-7 | 5.6% |
| Texas | Nov 8-14 | Apr 1-7 | 1.3% |
| Indiana | Mar 1-7 | Apr 22-30 | 8.0% |
| Illinois | Mar 8-14 | Apr 22-30 | 5.6% |
| Montana | Apr 1-7 | Nov 22-30 | 8.5% |
| Vermont | Apr 1-7 | Jan 8-14 | 10% |
| Washington | Aug 1-7 | May 1-7 | 10% |
| Idaho | Sep 1-7 | Dec 8-14 | 5.8% |
| Oregon | Sep 1-7 | May 8-14 | 5.4% |
| North Dakota | Sep 8-14 | Nov 15-21 | 2.9% |
| California | Sep 22-30 | May 22-31 | 4.0% |
| Massachusetts | Sep 22-30 | Apr 22-30 | 11% |
| Maine | all year | – | 20% |
| Alaska | all year | – | 7.8% |
First arrivals = first week reports reach 10% of the usual in-season rate for the most reported species in the state. Most gone by = last week at half that rate. Definitions.