Cormorant (Phalacrocorax carbo)
The population figures, length, weight and wingspan correspond to the data of the Vogelwarte Sempach
Information on behaviour, distribution etc. is based on my own observations and was supplemented with information from the following sources:
The Birds of Switzerland (2007) Lionel Maumary et al.
Swiss Breeding Bird Atlas 2013-2016
The Cosmos Bird Guide (2017) Lars Svensson et al.