These berries are an important food source for birds and the berries of the northern wild raisin are especially important to the caterpillar of the spring azure butterfly.
(These berries; are; an important food source for birds) (the berries of the northern wild raisin; are; especially important to the caterpillar of the spring azure butterfly)
These berries the berries of the northern wild raisin
are are
an important food source for birds
especially important to the caterpillar of the spring azure butterfly