ことり小鳥kotori
1.
A small-sized bird often kept as a pet, appreciated for its pleasant song or ability to learn tricks, such as canaries, sparrows, and finches.
2.
Any diminutive bird species, particularly those that are common in gardens or rural areas, such as sparrows and warblers.
3.
A term referring to small birds that are typically housed in cages, emphasizing their ornamental and companion role rather than their wild counterparts.
Example:
小鳥たちはたのしそうにさえずっています。