Original: They range in size from the Pygmy Cormorant (Phalacrocorax pygmaeus), at as little as 45 cm (18 in) and 340 g (12 oz), to the Flightless Cormorant (Phalacrocorax harrisi), at a maximum size 100 cm (40 in) and 5 kg (11 lb).
Simplified: Cormorants range in size from as little as 45 cm (18 in) and 340 g (12 oz) to a maximum size 100 cm (40 in) and 5 kg (11 lbs).