where they're toxic to insects and linked to insect-eating bird declines. The implications of this are not restricted to whip ...

It is commonly stated that the natural food of this bird consists of insects, fruit, and berries; and that it has developed a taste for a carnivorous diet only luring the last thirty years.

which in turn may provide less cover for ground-breeding species or supply less insect-pollinated fruits for frugivorous (fruit-eating) birds. Insects provide essential energy for migratory birds ...

“These migratory birds need to eat enough calories to sustain and survive their arduous migration flights, so it is likely that the documented declines in insect populations worldwide will have ...