The snail kite (rostrhamus sociabilis) is a specialist that feeds on only one specific type of snail. by comparison, the mallard duck (anas platyrhynchos) is a generalist that feeds on diverse food sources. whereas the snail kite has a very limited range, the mallard duck has a very broad range. the snail kite's diet is an example of a(n)
(a) habitat
(b) limiting factor
(c) ecological niche
(d) range of tolerance