Date: 09/16/2019

Number: 30000

Numerous reports from Citizen Scientists on the huge SW flow of Monarchs ALL day long today on this beautiful 23°c sun shiny blue sky day with little wind.

Detroit River Hawk Watch:

Non-raptor Observations:
The other flying creature of note was the monarch butterfly. I can only estimate that well over 30,000 passed by. The sky was truly filled with them. We had no way to effectively count them but we estimated them at about 100 per minute and that was only one little slice of the sky! The raptors kept us busy but it would have taken a team to even try and come close to an accurate estimate. Common nighthawks were also observed today
catching insects in a hatch that occupied the gulls as well.

http://ontbirds.ca/pipermail/birdalert_ontbirds.ca/Week-of-Mon-20190916/thread.html

Brownstown, MI

Latitude: 42.1 Longitude: -83.2

Observed by: Darlene
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