( ( The ( spur-winged goose ) ) ( ( is ( ( a ( common bird ) ) ( of ( African wetlands ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ spur-winged) (NN goose)) (VP (VBZ is) (NP (NP (DT a) (JJ common) (NN bird)) (PP (IN of) (NP (JJ African) (NNS wetlands))))) (. .)))
The spur-winged goose is a common bird of African wetlands.
(ROOT (S (NP (NP (DT The) (NN bird) (NN ancestor)) (SBAR (WHNP (WDT that)) (S (VP (VBD lived) (PP (IN in) (NP (NNS trees))))))) (VP (VBD developed) (NP (NP (NNS wings)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB commonly)) (VP (VBN associated) (PP (IN with) (NP (NNS birds))))))))) (. .)))
The bird ancestor that lived in trees developed wings, which is commonly associated with birds.