Bittern : male booming (dusk) : RSPB Otmoor

As darkness fell on a calm Spring evening, this male Eurasian bittern (Botaurus stellaris) emerged from a nearby reedbed, and I was delighted to be able to capture it performing its "booming" call in the open, as it moved to an adjacent reedbed.
This clip was filmed on an #iPhoneXs around half an hour after sunset at RSPB Otmoor nature reserve, Oxfordshire, UK, using the phonescoping technique. I was about to give up filming for the evening due to failing light, but thought I'd have a final scan across the reedbeds through my binoculars, and just caught sight of a bittern-like shape some 175m away in the gloom. The actual conditions were much much darker than it appears here, resulting in lots of video 'noise' in the original file, on which I've had to work extensively to create an acceptable image of the #bird. My knowledge of editing software, and of video noise reduction in particular, is somewhat limited, but the end result doesn't seem too bad (compared to the original, at any rate!); there's still plenty of noise remaining though.
Shooting at such a distance also meant that the boom call ended up being around half a second behind the image in the original clip, so this had to be adjusted in the edit.