Hoatzins have an enlarged crop that acts as a fermentation chamber, breaking down the leaves they eat. This process produces foul-smelling bacterial vapors that are similar to cow manure - hence their nickname ‘stink bird’. #science #sciencefacts #hoatzin #stinkbird

Hoatzins have an enlarged crop that acts as a fermentation chamber, breaking down the leaves they eat. This process produces foul-smelling bacterial vapors that are similar to cow manure - hence their nickname ‘stink bird’.

#science #sciencefacts #hoatzin #stinkbird