Q 01/05
A) Copper
B) Calcium
C) Iron
D) Zinc
Answer · why
Iron was the hidden killer: once keepers cut it from the diet and added tannic acid, a few zoos could finally keep the bird alive.
Q 02/05
A) Brown
B) Grey
C) White
D) Yellow
Answer · why
Brown is the true pigment colour; the green is iridescence, which is why the same feather can flash gold or violet as the light shifts.
Q 03/05
A) Mango
B) Cherry
C) Olive
D) Avocado
Answer · why
Avocado relatives in the laurel family make up over half the fruit these birds eat, and the dropped pits plant new trees across the forest.
Q 04/05
A) Honduras
B) Guatemala
C) El Salvador
D) Belize
Answer · why
Guatemala has flown the quetzal on its flag since 1871, and the crossed rifles make it one of just four UN member flags to show a firearm.
Q 05/05
A) Medicine
B) Fishing lures
C) Money
D) Writing quills
Answer · why
Money in feather form is the reason a modern Central American currency is still called the quetzal.
Play the full Quetzal quiz — scored, streaked, and passable to a friend.