Sand Martin - Riparia riparia The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in the ...

Sand Martin - Riparia riparia The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in the ...

Sand Martin - Riparia riparia The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in the ...

Sand Martin - Riparia riparia The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in the ...

2015-12-24_Bataguacu_0001P Parana river, the 2nd largest river in South America and one of the world's top ten river in extension. In Brazil, it divides ...