It’s been a slim winter for pine siskins here in northern New Jersey, and I know why.
It has nothing to do with the food crop up north, the snow cover down south, or the curious biological clock that seems to govern these streaky nomads’ seasonal movements.
Siskins keep a stone in their nest that makes the nest invisible; you can only see the reflection of the nest in a bucket of water placed beneath the nest tree. Whoever can get such a stone and carry it will also be invisible. Or you can use the egg of the siskin, which also makes you invisible. You’ll be also be invisible if you carry the whole nest in a sack.