brown bear
羆 centers on a specific kind of bear: the brown bear. It is a narrow, concrete animal name rather than a broad conceptual idea.
羆 combines 罒 (a net) with 熊 (bear), likely to specify a type of bear. The exact historical development is uncertain, but the character appears to be a compound built from 熊.
A bear (熊) caught under a net (罒) — that's a brown bear specifically, as if the net distinguishes it from other bears.
For ヒ, imagine a brown bear letting out a big sigh: hee -> ヒ, as it rests under the net.