Black Bittern Botaurus flavicollis
Estimated average number of individuals by week based on eBird data, Jul 2014 to Jun 2024
Peak weeks Mar 12-Mar 18, Dec 17-Dec 23
Early date 02 Jul 2022
Late date 30 Jun 2022
Nov to Apr is the best period to catch this scarce migrant, although oversummering has been recorded recently. (Data in the chart is only until Jun 2022.)