Observations of early Spring to mid Summer August 22, 2017 Observations of this spring to early summer: Early Spring.. Black Birds feeding on beetle eggs and pupal from last year's grubs. A natural pesticide. The caterpillar provides food for the birds and small animals. It is considered the biggest agricultural pest as it munches on the new spring leaves. Although a pest, when it metamorphose into a butterfly it helps to pollinate flowers. Mid Summer. Where are the honey bees? Learn how to grow a clover lawn! Have a lawn with NO pesticides or herbicides. http://cloverlawn.org/