The ahnee chorus is a string of vocalizations produced by groups before leaving their communal roost in the morning. The chorus typically begins with a repeated ahnee call from one individual and continues as the other group members join in with overlapping ahnees. The ahnee chorus may also contain grunt, whine and hoot calls. Ani groups often chorus several times before leaving the roost, and chorusing bouts can vary in duration and in the number of call types made, but we do not know whether differences in bout duration or structure are biologically meaningful. The average chorus duration measured in this study was 6.9 - 27 s. This call has also been referred to as the 'get up' call (Davis, 1940, Auk, 57).

File description: Example of an ahnee chorus initiated with ahnee calls from a single individual, followed by multiple group members joining in with grunt, ahnee, and whine calls.

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pair in flight

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Recording filtered for clarity.

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The ee-oo-ee is an uncommon call. All of our observations of ee-oo-ees occurred at the nest and in the nest tree when chicks were present.

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Hoots are primarily associated with chases. Chasing is an aggressive behaviour that occurs when a group or a lone bird enters another group’s territory. Chasing is accompanied by a predictable suite of vocalizations including hoots, grunts, and whines (see below). Typically, one to several birds chase a single bird. While resting between bouts of chasing, the chased bird and the chasing bird will often hoot back and forth. Hooting typically ends when one bird, typically the bird being chased, retreats. Hooting bouts can also end in attacks and fighting between the hooting birds. Hoots are also sometimes made in the roost tree, both at dawn and dusk, and may involve hooting back and forth between group members, or a single bird hooting with other group members whining or grunting in response. Hoots are also referred to as 'conk' calls (Davis, 1940, Auk, 57).

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same bird and session as XC122246. this cut features the same song delivered a bit more urgently. perched on a snag in the grassy area

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perched on a snag in the grassy area

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Alarm calls of 2-3 perched birds.

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Single bird

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ID certainty 100%. (Archiv. tape 159 side A track 36 seq. A)

The chlurr is a common call, typically associated with movement or a change in activity. Chlurrs are often produced by multiple group members when two or more individuals are perched together, but are also produced by anis perched alone.

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-flew towards ani behind me, second ani heard also

-in trees along canal surrounded by marsh

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