A speckled pigeon (Columba guinea) at the Columbus Zoo.
A Madagascan blue pigeon (Alectroenas madagascariensis) at the Plzen Zoo in the Czech Republic.
Nicobar pigeon, Caloenas nicobarica, at the Omaha Zoo.
Philippine green pigeon (Treron axillaris) at the Avilon Zoo.
A male African green pigeon (Treron calvus) at the Dallas World Aquarium.
A green imperial pigeon (Ducula aenea polia) at Penang Bird Park.
Africa olive pigeon (Columba arquatrix) from Le Parc des Oiseaux in Villars Les Dombes, France.
A common woodpigeon (Columba palumbus palumbus) at Centro Fauna Selvatica “Il Pettirosso”.
Wonga pigeon (Leucosarcia melanoleuca) at the Houston Zoo.
Wonga pigeon (Leucosarcia melanoleuca ) at the Houston Zoo.
A metallic pigeon (Columba vitiensis griseogularis) at the Plzen Zoo in the Czech Republic.
A spotted imperial pigeon (Ducula carola) at the Plzen Zoo in the Czech Republic. This species is listed as vulnerable.
A Torresian imperial pigeon (Ducula spilorrhoa tarara) at the Plzen Zoo.
A rose crowned fruit dove (Ptilinopus regina flavicollis) at the Plzen Zoo.
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