Members of Ardeidae fly with their necks retracted , unlike other long - necked birds such as storks , ibises and spoonbills .
Bitterns tend to be shorter necked and more wary .
Members of Ardeidae fly with their necks retracted , unlike other long - necked birds such as storks , ibises and spoonbills .
Bitterns tend to be shorter necked and more wary .