Shaky footage, but nice to hear the reeling of Savi's Warbler at Coto Donana.

Shaky footage, but nice to hear the reeling of Savi's Warbler at Coto Donana. Checked the sonograms which were just below 5khz. Grasshopper Warbler is to my ear, extremely similar but reels at 6-8khz. School Science lessons paying dividends now!
https://youtu.be/WFdYC882HHo