| Commune | Code | Observation(s) | % des observations totales |
|---|---|---|---|
| Alluyes | 28005 | 1 | 3 |
| Bazoches-en-Dunois | 28028 | 1 | 3 |
| Brezolles | 28059 | 2 | 6.1 |
| Brou | 28061 | 1 | 3 |
| Cloyes les Trois Rivières | 28103 | 6 | 18.2 |
| Cormainville | 28108 | 1 | 3 |
| Crécy-Couvé | 28117 | 3 | 9.1 |
| Dancy | 28126 | 1 | 3 |
| Écluzelles | 28136 | 2 | 6.1 |
| Eole-en-Beauce | 28406 | 1 | 3 |
| Fontaine-les-Ribouts | 28155 | 1 | 3 |
| Loigny-la-Bataille | 28212 | 1 | 3 |
| Montigny-le-Chartif | 28261 | 1 | 3 |
| Montreuil | 28267 | 1 | 3 |
| Moutiers | 28274 | 1 | 3 |
| Oulins | 28293 | 1 | 3 |
| Pré-Saint-Évroult | 28305 | 1 | 3 |
| Saint-Ange-et-Torçay | 28323 | 13 | 39.4 |
| Saint-Denis-Lanneray | 28334 | 9 | 27.3 |
| Saint-Maur-sur-le-Loir | 28353 | 1 | 3 |
| Saulnières | 28369 | 4 | 12.1 |
| Thiville | 28389 | 2 | 6.1 |
| Tillay-le-Péneux | 28390 | 1 | 3 |
| Trizay-lès-Bonneval | 28396 | 1 | 3 |
| Ymonville | 28426 | 1 | 3 |