Great auks could variety up to 6.8 kg (15 lb) and .9 m (3. ft) tall. The premier of the cormorants is the flightless cormorant of the Galapagos Islands (Phalacrocorax harrisi), at up to five kg (11 lb) and one m (3.3 ft), whilst huge races in the wonderful cormorant (P. The major species in the most species-abundant passerine household, Tyrannidae or tyrant-flycatchers, is the terrific shrike-tyrant of the South Andes (Agriornis lividus), at 99.