Complex sentence: Flight feathers on the tail and wing also become black and later, the pink colouration on the plumage typical of adults begins to appear Hancock JA, Kushlan JA, Kahl MP.
Split into simpler sentences: Flight feathers on the tail and wing also become black. Later, the pink colouration on the plumage typical of adults begins to appear Hancock JA, Kushlan JA, Kahl MP.