Birds. Ornithology is the study of birds. In a clade with dinosaurs!!. Taxonomy Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Aves. General Characteristics. Birds! Endotherms **Warm blooded (endothermic ) Metabolically regulate body temp Horny bill
Ornithology is the study of birds
keep wings extra light – is this a
bridge to the echidna?