Q. Identify the correct pair of birds with a raft-like keel and lacking preen gland and syrinyx
A) Tinamus and Apteryx
B) Rhea and Dromeous
C) Casuarius and Struthio
D) Kiwi and Rhea
Explanation
Struthio camelus (ostrich) is a gregarious polygamous and omnivorous flightless bird. Oil glands, preen gland are absent. Syrinx is also absent. Casuarius sp is a flightless bird. The head is beautifully coloured due to presence of helmet like horny casque. The preen gland and syrinx are absent.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.