Link to English Wikipedia entry: Black-headed Heron
Link to German Wikipedia: Schwarzhalsreiher
Link to French Wikipedia: Héron mélanocéphale
Link to EOL.org: Ardea melanocephala
Link to iNaturalist.org: Ardea melanocephala
Links to my pictures: Black-headed Heron
Binomial Links for Ardea melanocephala on www.guenther-eichhorn.com