Birds · Not heard for 36 days.

Caspian Tern

Hydroprogne caspia

First heard here 21 Sept · last heard 1 Oct · 3 days in the last year · 3 detections on record

Hear it

A clear recording alarm call, call, recorded in Australia

Drew Davison, xeno-canto, CC BY-NC-ND 4.0. Trimmed to 20 seconds.

Heard here by the park sensor, 94% match

Raw and a bit distant; the bird was somewhere in the park, not next to the microphone.

What to look for

The Caspian tern is the world's largest species of tern, with a subcosmopolitan but scattered distribution. Despite its extensive range, it is monotypic of its genus, and has no accepted subspecies. The genus name is from Ancient Greek hudro-, "water-", and Latin progne, "swallow". The specific caspia is from Latin and, like the English name, refers to the Caspian Sea.

When it has been heard

Detections per day, last 30 days. Heard on 0 of them.

Busiest day so far: Thursday 1 October, 1 detections between 5:22pm and 5:22pm.

Time of day

When it calls, last 30 days. Darker is busier.

Busiest around 6am. From 3 days with hourly counts.

Day	Heard	First	Last	Peak confidence
1 Oct	1	5:22pm	5:22pm	73%
22 Sept	1	7:01am	7:01am	94%
21 Sept	1	6:55am	6:55am	77%

Detections are automatic and can be wrong.