Residents puzzled by the sudden influx of Davao swallows the town of Santo Tomas, located in the province of North Davao in Mindanao, Philippines. What is surprising is that within this region is not caves, which are the natural habitat of swallows.
At the request of a local radio station Radyo Bombo Davao, it was noticed a lot of birds sitting on the power lines.
Local residents said the first appearance of swallows in August 2010. Since then, the number of birds has increased a thousand times, and now they are considered a local landmark.