Puzzle 22 · Amazonia and the Neotropics · Page 40 in print

Hoatzin Backwaters

Bacteria in the hoatzin’s enlarged crop help break down the leaves it eats; this unusual system lets the bird obtain nourishment from foliage beside South American waterways.

Jump to a word
Hoatzins raise their wings on a slender perch.

Hoatzins raise their wings on a slender perch.

Species reference for Hoatzin Backwaters. The photograph does not necessarily show the population or place named in the puzzle.

Philipp Hoenle / iNaturalist (CC0) · CC0 1.0 · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

A hoatzin's spiky crest and contrasting plumage stand out against green leaves.

A hoatzin's spiky crest and contrasting plumage stand out against green leaves.

Species reference for Hoatzin Backwaters. The photograph does not necessarily show the population or place named in the puzzle.

(c) desertnaturalist, some rights reserved (CC BY) · CC BY 4.0 · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

The words

  1. Blue Face

    Hoatzins have blue facial skin and red eyes.

    animaldiversity.org (opens a new tab)

  2. Branches

    Hoatzins nest on branches over the water.

    animaldiversity.org (opens a new tab)

  3. Canje Pheasant

    In Guyana the hoatzin is called the Canje pheasant.

    Discover Magazine (opens a new tab) · Stabroek News (opens a new tab)

  4. Chicks

    The young that escape by climbing or diving.

    Threatened young drop into the water and swim to safety.

    animaldiversity.org (opens a new tab)

  5. Clutch

    Hoatzins lay two to three eggs.

    animaldiversity.org (opens a new tab)

  6. Crop

    The enlarged throat pouch where leaves ferment.

    The hoatzin's enlarged crop holds leaf-digesting bacteria.

    animaldiversity.org (opens a new tab)

  7. Fermentation

    The breakdown of leaves by bacteria in its gut.

    The hoatzin digests leaves by fermentation, much like cows.

    Discover Magazine (opens a new tab)

  8. Foliage

    The leaves it eats.

    Hoatzins are leaf-eaters.

    animaldiversity.org (opens a new tab)

  9. Foregut

    The front part of the gut, where it ferments leaves.

    Its enlarged crop holds the bacteria.

    Wikipedia (opens a new tab)

  10. Guyana

    The hoatzin is the national bird of Guyana.

    Discover Magazine (opens a new tab)

  11. Helpers

    Young hoatzins act as helpers raising the next brood.

    animaldiversity.org (opens a new tab)

  12. Hoatzin

    Hoatzins digest leaves with bacteria in an enlarged crop.

    animaldiversity.org (opens a new tab)

  13. Legumes

    Hoatzins commonly eat the leaves of tropical legumes.

    animaldiversity.org (opens a new tab)

  14. Stinkbird

    A nickname from its smell.

    The hoatzin is known as the stink bird.

    Discover Magazine (opens a new tab) · Stabroek News (opens a new tab)

  15. Wing Claws

    Young hoatzins climb with their wing claws.

    animaldiversity.org (opens a new tab)

Sources

  1. Hoatzinanimaldiversity.org
  2. Hoatzin Backwaters (source capture)Discover Magazine
  3. Hoatzin Backwaters (source capture)Stabroek News (Guyana)
  4. Hoatzin Backwaters (source capture)Wikipedia

How we choose sources and photographs