From billcor at mcn.org Mon Feb 3 15:16:15 2020 From: billcor at mcn.org (Bill Cornelius) Date: Mon, 3 Feb 2020 12:16:15 -0800 Subject: [Leps-l] monarch census Message-ID: <0B76CF9D-DD19-4E47-B7A2-9107104AF96F@mcn.org> Hi People: This is an idea for quickly counting banded butterflies. band them with a different color spot at each banding station instead of a number or barcode. then take a video or hi res image of the roost through band pass filters that allow those colors. count the spots w/ an algorithm. is there any need for this? thanks Bill :)