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|sub=
|sub=
|alt=
|alt=
|regionimg=
|regionimg=HoatzinRange.png
|pop=
|pop=Unknown
|conservation=
|conservation=Least concern<ref>http://www.birdlife.org/datazone/speciesfactsheet.php?id=1319</ref>
}}
}}
The '''hoatzin''' (''Opisthocomus hoatzin'') is a South American bird whose chief characteristic is a pair of claws on each wing when young. The development of this feature cannot be explained by the [[Theory of Evolution]], as it would represent an inexplicable step backwards in the evolutionary path.
The '''hoatzin''' (''Opisthocomus hoatzin'') is a South American bird whose chief characteristic is a pair of claws on each wing when young. The development of this feature cannot be explained by the [[Theory of Evolution]], as it would represent an inexplicable step backwards in the evolutionary path.
Two to five eggs are laid in nests overlooking swamp water, and both parents rear the young, feeding them regurgitated vegetable matter from their crops. The young are born with claws on their wings, enabling them to use all four limbs to clamber up back to the nest should they drop into the water.
Two to five eggs are laid in nests overlooking swamp water, and both parents rear the young, feeding them regurgitated vegetable matter from their crops. The young are born with claws on their wings, enabling them to use all four limbs to clamber up back to the nest should they drop into the water.
==References==
<small><references/></small>
[[Category:Birds]]
[[Category:Birds]]