Passage: Birds-of-paradise build their nests from soft materials, such as leaves, ferns, and vine tendrils, typically placed in a tree fork. The typical number of eggs in each clutch varies among the species and is not known for every species. For larger species, it is almost always just one egg, but smaller species may produce clutches of 2–3 eggs. Eggs hatch after 16–22 days, and the young leave the nest at between 16 and 30 days of age.

Question: How long does it take for the eggs to hatch?
16–22 days