Clouds of the desert, camels of the sky

The figurative name, the Ship of the Desert, is known, but not the opposite metonymy, by which the ship is called the Camel of the Sea: so too camels are called the Clouds of the Desert, and clouds, the Camels of the Sky.

-Joseph von Hammer-Purgstall, Das Kamel, 1834

When we looked up and saw neither clouds nor camels but rather contrails, KhairAllah would remark upon the Tayyara, Airplane, a word from the same root as Tayr, Bird, which sometimes would land on the camels’ humps to peck at their Rukāb, Riders, here meaning ticks.