After 2 to 3 months in the larval stage, the tadpoles metamorph between the end of June and beginning of August depending on the location. |
The tadpoles metamorph during the following summer after 12 to 15 month in the larval stage. |
After 2 to 5 months at the larval stage, the young metamorph between June and August. |
On the subject of Picus one may consult Ovid, Metamorph, xiv. |