It is a type of orb-weaver, creating fine webs that entangle prey. The webs are built flat, not far from the ground. They seem to prefer to hang head-down when collecting and feeding on prey. The silk of their web is not sticky so its ensnaring quality comes from the way it is built. Inside of a spiral with large holes in it, the Feather-Legged Spider creates a willowy web with many small gaps. The size of the narrow connections in the web make it difficult for an insect to pull itself free (think of the board game "Operation"). It will likely make the tangle worse by twisting more of the small gaps around itself. It is then that the spider descends on its prey, crushing it using lines of silk.
Typical orb-weavers recreate their web every day. A stabilimentum (zig-zag) may be visible in the web. It may be the only part of the web you see before you walk through it.