During winter months, when nectar flowers are not in bloom, you can prepare a nutritious food supplement such as sliced watermelon or mashed bananas for butterflies if they eclose during this time.

Ranger Laurie applying a tag before she releases the butterfly

The tagged butterfly's information, such as date enclosed, gender and location is recorded and sent to Biologists at Monarch Alert, Cal Poly San Louis Obispo who study Monarchs and their migration.