| Currently there are 23 ongoing ACF projects involving experimentation with mice, rats, hamsters, rabbits, ducks, sandpipers, and zebra finches. |
| Others, like zebra finches, find it impossible to imitate a new song after their puberty-like phase in life. |
| Fourteen different finches evolved from a common ancestor, each adapted to suit the conditions of their various islands. |
| I'm just disappointed to see female mallards and zebra finches falling for something this obvious. |
| Young indigo buntings and zebra finches require social interactions to acquire songs. |
| A drive down a local road flushes out all kinds of sparrows, warblers, and finches. |
