the passenger pigeon was once the most abundant bird in north america.
martha, the last known passenger pigeon, died in the cincinnati zoo.
hunters killed passenger pigeons in huge numbers for cheap meat.
the extinction of the passenger pigeon is a classic example of human impact.
massive flocks of passenger pigeons would darken the sky for days.
deforestation destroyed the passenger pigeon's primary breeding grounds.
scientists are attempting to bring back the passenger pigeon using dna.
the passenger pigeon population declined rapidly in the late 19th century.
conservationists use the story of the passenger pigeon as a warning.
nothing remains of the passenger pigeon except for museum specimens.
technically, the bird known as the passenger pigeon is the wild pigeon.
the relentless slaughter of the passenger pigeon caused its demise.
the passenger pigeon was once the most abundant bird in north america.
martha, the last known passenger pigeon, died in the cincinnati zoo.
hunters killed passenger pigeons in huge numbers for cheap meat.
the extinction of the passenger pigeon is a classic example of human impact.
massive flocks of passenger pigeons would darken the sky for days.
deforestation destroyed the passenger pigeon's primary breeding grounds.
scientists are attempting to bring back the passenger pigeon using dna.
the passenger pigeon population declined rapidly in the late 19th century.
conservationists use the story of the passenger pigeon as a warning.
nothing remains of the passenger pigeon except for museum specimens.
technically, the bird known as the passenger pigeon is the wild pigeon.
the relentless slaughter of the passenger pigeon caused its demise.
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