Even tiny birds like robins are a threat to skinks. The two most common lizards we have are the Western fence lizard, also known as a blue belly, and the alligator lizard. https://www.petmd.com/reptile/care/evr_rp_what-do-lizards-eat Herbivorous lizards can eat a variety of fruits and vegetables, including avocado, broccoli, cabbage, cauliflower, celery, turnip greens, chard, okra, blueberries, dandelion greens, cantaloupe and bok choy. They ignore basil,cucumbers pepers as do the local green anoles, a small lizard, and the flowers. However, large populations of lizards in the garden nibbling on plants can have a cumulatively damaging effect. Quite the twist: lizards do not eat garden plants. What species of lizards eat other lizards? Both eat insects, and the alligator also will eat snails. The garden skink's predators are mainly birds and cats. While we are talking about lizard lunches, it is important to avoid using chemicals and products in the garden that may harm or prove fatal to your beloved lizards. Larger lizards and snakes will sometimes try to eat them as well. For example, the Komodo dragon will actually eat its own live young, the babies have to do be on the alert in case an adult lizard tries to eat it. Do lizards feed on garden plants or are they a benefit to the landscape? In the wild, skinks mostly feed on insects like earthworms, crickets, butterflies, flies, grasshoppers, and caterpillars. In my garden here on the farm in Costa Rica the chickens have found my small veggie garden. They even help to get rid of the culprits – grasshoppers and other bugs. They strongly believe that the poison on this organism makes them yellow. A garden can be a lizard's private rainforest, and small numbers of the reptiles are even beneficial. Controlling the bugs that are attracting the lizards is vital — after all, with the lizards gone, these bugs may take over and eat your garden to ragged vegetative stubs. Many lizards and little grass skinks feed on insects and larvae, while larger lizards such as Blue-tongues and shinglebacks will happily slurp up slugs and snails. They usually associate the common gecko (a type of lizard) with poison. Like many other skinks, its tail will drop if grasped roughly. There are types of lizards that will consider eating other lizards, but even their own species. Many small lizards are fed small salads consisting of a variety of fruits and vegetables. Many skinks like the skinks you see in your garden do however live close to human households because they know all too well that insects are attracted to light. The flock of White throated magpie jays do however eat all the ripe very hot Congo chilies. Since most prefer eating bugs to plants, they cut down on pests that prey on vegetation. Additionally, some people believe that all lizards are venomous and harmful.