Many have beautiful or strange color patterns. The giant swallowtail caterpillar has a smeary black and white pattern, and when it’s still small, it’s easy to miss because it looks like bird ...

Fennel is another wonderful plant that attracts the Black Swallowtail butterfly. This herb is similar to dill in that it serves as a nectar source for adults and a host plant for caterpillars.

Black and white stripes combined with a knobbly body make the caterpillar look remarkably like bird droppings. This unappetising outfit is a clever ploy to hide in plain sight, a trick used by ...

Swallowtail distribution is wholly dictated by the availability of milk parsley, its caterpillar food source. When the Norfolk Broads were actively managed by reedcutters who harvested both reed ...