By Andreas Trepte - Own work, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=33521634
Dobbertjie
Sources:
(*) https://en.wikipedia.org/wiki/Black-necked_grebe
(*) https://ebird.org/species/eargre
(*) https://search.macaulaylibrary.org/catalog?taxonCode=eargre