This is never nice to witness, especially when we grow attached to them. Life is cruel, and what we think of as a caring mother nature, can be vicious and more destructive. But I always try to remind myself: it is only us humans that have an abundance. The whole idea of abundance and actually having "enough resources" is such an unnatural thing. Anything will be something else's food. The insect becomes the food of the bird, the bird becomes food for bigger birds of prey, bird of prey becomes the food of insects and so the loop or circle of life carries on. Sorry for your loss though 😪 Death is the harshest teacher out there.