Ducks were depicted amongst foodstuff for the dead as early as the Old Kingdom1. There are basically two types. The first one is a reclining duck with its head twisted backwards indicating a dead or sleeping bird1. They were made in the round in many materials and occur in large number in Dynasty 181
Green glazed composition
L 2.6, H 1.4, T 0.5 New Kingdom, Dynasty 18
British Museum #EA57910
© Photograph D. Attaix
Blue glazed steatite pierced for suspension
L 1.3, H 1.0, W 0.8
New Kingdom Dynasty 18
MET #17.190.2011
References
1Andrews C. Amulets of Ancient Egypt, 1994, p. 92