All Sightings
This map shows when and where monarchs were present. All monarchs people report appear on this map, whether a person sees one butterfly or thousands, whether the monarchs are migrating or not. Watch how the map changes as the seasons change.

Observers—please include:

• The number of monarchs seen.
• The length of time observing (1 hour, 1 minute, etc.)
• The butterfly's behavior (laying eggs, nectaring, or flying, etc.).

Overnight Roosts
Monarchs rest at overnight roosts at the end of each migration day. This map shows where large gatherings of roosting butterflies were seen.Observers—please include:

• The number of monarch at the roost. (Please estimate.)
• The length of time the roost remained (1 day, 1 week, etc.)
• Notes about the butterflies' behavior (time arrived in the evening, time departed, interactions, etc.)
• Notes about the weather (wind direction, storm systems) and habitat (landscape, nectar available, etc.).

Peak Migration Events
Spectacular sightings--or the season's biggest waves of migration--are shown on this map. It shows when and where peak migration events occur.

Observers—Don't hesitate to report an event as "peak" if you believe it is. We review all sightings carefully and will contact you if we have questions.

Other Monarch Observations
This map shows miscellaneous observations. People report about monarchs they have raised indoors, or tagged and released, etc. If an observation does not fit into a category above, people report to this category.

Observers—Not seeing monarchs?
Report here if you have been watching but have not seen monarchs. This is called "absence data." Without absence data we wonder, are there no monarchs or simply no observers in various places?