Specimen No. 038 ยท Bird
Ostrich penis size & anatomy
Struthio camelus
Reference measurement
Approx. 40 cm / 15.7 in
Approximate average
Veterinary reference states adult male phallus up to 20 cm flaccid and about 40 cm erect; calculator uses erect value.
Measurement source: PMC / Clinical Avian Medicine (opens in a new tab)
Did you know?
An adult ostrich phallus can reach about 40 cm when erect.
Source: PMC (opens in a new tab)
Unlike a mammalian penis, the ostrich phallus has no urinary function.
Source: FAO (opens in a new tab)
When erect, it naturally deviates slightly to the left.
Source: PMC (opens in a new tab)