10 July 2025
Birdsong is coming to an end as the breeding season wraps up but birds are still making contact and warning calls. In a recent walk in Frick Park Charity Kheshgi pointed out a robin saying “Danger from the air!” a sound so high-pitched that I no longer hear it.
Upper frequency sounds are hard to pinpoint so a robin saying “Danger! Hawk!” should be hard for the hawk to find … except that robins making this warning call usually stand out in the open, as the shown above.
Learn to identify robin and starling warning calls in this vintage article. Unlike birdsong these sounds happen all year long.
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