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| bergeronnette de Yarrell (Motacilla alba yarrellii); bergeronnette grise (Motacilla alba) | |||
| bergeronnette grise (Motacilla alba); lavandière grise (Motacilla alba) | |||
| bergeronnette grise (Motacilla alba, Motacilla alba alba); bergeronnette de Yarrell (Motacilla alba yarrellii) | |||
| pied wagtail: 6 phrases in 3 subjects |
| Natural resourses and wildlife conservation | 2 |
| Ornithology | 3 |
| Zoology | 1 |