Unusual Pattern
Why are so many roosts being reported from Ohio this year before any from Canada? In previous years, Canada's roosts have always preceeded Ohio's. Typically, we see monarchs traveling along the northern shores of Lake Ontario and Lake Erie and roosting along the way.

• Will we see a later pulse of monarchs coming down from Canada's north shores?
• Is Canada's final generation developing late — or was production low this year?

Counting Monarchs
When you watch migrating monarchs, find ways to quantify (count or measure) what you're seeing. For example, tell us how many monarchs you count per minute — or how your observation compares to what you saw yesterday, last week, or last year.

Migration Rate: 2 per minute
"While sitting at railroad crossing waiting for train, a string of 21 monarchs flew overhead in a matter of about 10 minutes. There were a couple small groups of 3-5."
Red Wing, Minnesota September 7, 2015

Looking Ahead
Watch the roost map for reports from the northern shores of Lake Ontario and Lake Erie. Migration from Canada is off to a slow start; it typically peaks the week of September 19th.

• Tagging Study
• Journal

Betty Mattson