I have been watching the Black Swallowtail caterpillar on the dill grow since they were first laid as an egg. There were three caterpillars and now only one can be found. The photo below shows one of the caterpillars nine days ago.
It is growing and becoming more noticeable to birds and insect predators, so its days may be numbered like its siblings. Even though not having filled the bird feeders, birds are still very active in the garden. I can only surmise they are living off the insects and maybe some early seed producing plants.
Much happens, even in a small garden.