Date: 11/21/25 5:57 am From: Allen Chartier <amazilia3...> Subject: Re: [birders] NYTimes.com: We Can Now Track Individual Monarch Butterflies. It’s a Revelation.
Dody,
These have been in development for a couple years, and they can also be
attached to hummingbirds. I hope to be able to use these within a couple
years on our Ruby-throats, and also on Rufous Hummingbirds.