The correct option is D Struthio
The bird shown in the image is an ostrich. It is scientifically called Struthio. It is the largest bird with a height of 9 feet. It is a flightless bird but a fast runner. The neck is pinkish-red. The feathers of males are black and white in colour and that of females are grey in colour.
Psittacula is the common name of parrot, Pavo is the common name of the peacock, Neophron is the common name of the vulture.
Parrot, peacock and vulture have well-developed wings that help in flight.