Our aerial count for this Wednesday morning was 406,000, with an absolute error of +/-13.5%. We had a strong tail wind this morning and flew the route at a significantly faster pace than usual, forcing us to count a large number of Sandhill Cranes under significant time pressure. I was only able to complete 2 photo subplots to estimate error because of this fast pace. In 2016 we exceeded 410,000 Sandhill Cranes on the river on March 14th. We crest the 400,000 mark this year 6 days ahead of last year.
*Data property of the Crane Trust: Permission required before use or distribution.
