In the images I present the results of our monitoring efforts of Sand Martins. Points where Sand Martins were observed are in yellow (see table).
-Point 1. Active sand stocks. Sand Martins interfered with production. We eliminated the vertical faces.
-P. 2. Stock Number 1. Finally only one pair nested here.
-P. 4. Stock Number 2. Sand Martins colonized this stock; there were approximately 50 pairs here this season.
-P. 5 and 10. Big shallow lake, located very close to Stock Number 2. Sand Martins, swallows and swifts were observed feeding.
-P. 16. Small pond, at the edge of an agricultural field. Mainly surrounded by open space. Quite a lot of Sand Martin activity was observed.
-P. 17. Inactive face of the quarry. This year it was not being used by Sand Martins. Other species were observed here though, such as Eurasian tree sparrows (Passer montanus). Sand Martins used an irrigation channel which is permanently flooded.
- Sand Martins did not make use of the bodies of water located inside the forested areas.
- They preferred open areas, such as the big lake, the small pond outside the poplar plantation or the irrigation channel. We expected to observe activity at the other large lake outside the poplars (P. 14 and 15), though we did not during our sampling this season.
- We think that small ponds in open spaces, or big shallow lakes with a lot of insect production could benefit Sand Martin populations in areas such as gravel pits.