Tyrannus vociferans (Cassin's Kingbird) is a species of birds in the family tyrant flycatchers. It is found in the Nearctic and the Neotropics. Individuals can grow to 50 g. Reproduction is dioecious. Cassin's Kingbird relies on flight to move around.
EOL:llä on tietoa 18 määritteelle, mukaan lukien: