January 2024 – vol. 117, issue 1, pp 40–43 Abstract The Caspian Tit Poecile hyrcanus is a little-known species with a range that is limited to Iran and the extreme south of Azerbaijan. It is often depicted as showing a brown or brownish cap. However, observations of the species in Azerbaijan in November 2023 suggest that the cap can look black in the field. This short paper presents photographs and notes on the field appearance of two indi... This article is only available to registered users.To read more, please log in or purchase a subscription.