# Blackbird Calltypes and ID
## ALARM_chink_and_chook_calls
sharp staccato 'chink' or 'chook' alarm calls — short vertical marks at mid-low frequencies, typically 2–6 notes per burst with clear gaps between bursts; marks are narrow and isolated, not flowing into each other; calls often repeat rhythmically at 1–3 second intervals
## CONTACT
single or paired soft contact calls — one or two tall narrow bright vertical columns spanning a wide frequency range, standing out clearly from the background; much less note-density than song; the bright column(s) are isolated with long silence either side
## SONG_Melodious_low-pitched_fluted_warble
rich melodious warble — dense clusters of vertical marks concentrated in the lower half of the spectrogram; multiple notes per phrase (5–15 marks), varying in width and brightness; phrases flow together with short gaps; energy concentrated below the mid-frequency line, with little signal in the upper half
# Names
Blackbird
eurbla