Help determine the health of urban bees with a citizen science experiment called the Great Sunflower Project. It’s simple and free. Just register at the Great Sunflower Project website and you’ll be sent a package of wild annual sunflower seeds (Helianthus annuus). Twice a month you’ll get an email to remind you to time how long it takes for five bees to visit your sunflowers.
Sounds like it has drinking game potential, though that might lead to inaccurate results . . .