Fascinating! Such an interesting sonic perspective. Incredible work as always!

Near infrasound in birds

Not sure if this has ever been recorded before but during the fights between two male cranes I heard them panting and utter almost infrasound growls (80 to 200 Hz). These calls were not made by the wings. Has anyone heard these before?
Huddunge, Uppland. April 9, 2024

AudioTechnica BP4025 + Zoom F3

Near infrasound in Cranes fighting

This is quite a rare recording where the infrasound of the lekking male capercaillie is clearly audible. This infrasound is thought to be an indication of male quality and the two bands of 35 Hz and 55 Hz probably travel much longer in the forest than the rest of lek. When males utter their infrasounds just after the "plop" they go temporarily deaf so it must be quite exhausting to produce. The males go directly under my microphone and the "crisp" sounds are from dry reindeer moss.

Skogstibble. April 21, 2023.

Mixpre 3ii + AudioTechnica BP4025

Infrasound in lekking Capercaillie

I continue my quest to document near infrasound calls in different bird species (cranes, capercaillies). In this recording you can first hear the male deliver food to the begging female at nest. And directly after (starting at 50 seconds and continuing for the rest of the recording) the male (?) continues with very low-frequency calls (60-80 Hz). 
May 4, 2024, Uppland.

Mixpre 3ii + Lewitt 440 pure in ortf

Near infrasound in Great Grey Owls

Fifth year in a row on different Capercaillie leks. This year started out slowly at 04.10 AM and about 5 males were displaying without much enthusiam until 07.30 when four females arrived. All of a sudden I had 15 males in front of the hide! Where did they come from. Wonderful recordings of the (almost) infrasound (32 Hz) when the males go "blind". If you listen carefully you will also hear mating of Pygmy Owl and hear when the Capercaillie males go quiet when a Goshawk calls in the distance.

Uppland. April 17, 2025.
Zoom F3 + AudioTechnica BP4025

Capercaillie lek with infrasound

Two generations discuss what it’s like to be a teenager in 2025 vs the 80’s

Mind The Gap

La Jolla, San Diego

Potok Waterstream medium MKH8020 MKH40 in mix

Potok Mono MKH40 in Mkh8020 stereo Waterstream medium

A field recording using leaf audio contact microphone + field amp, listening in on the secret life beneath the Poplar Tree. Poland 2025 (Owl Mountains) 

Life Beneath the Poplar

A sound of insects beneath a Poplar Tree, some stridulation and sound of distant crickets also picked up by the mic. 

A peaceful, meditative natural soundscape: the gentle wind through coastal forest; the deep roar of the Southern Ocean a mile away; and, immersed within the matrix of these elemental forces, a dispersed, quiet, but alive and recovering, early summer dawn - announced quite emphatically at the beginning of this recording by a nearby Red Wattlebird. (The Red Wattlebird's early 'wake up' calls are the only louder passage in this entire piece. It's a Red Wattlebird subspecies (Anthochaera carunculata clelandi) that is found only on Kangaroo Island.)

Recommended listening: Good quality headphones with a flat frequency response (preferably open-backed); or good quality stereo monitors. Relaxed deep meditative listening at a quiet time with minimal interference from extraneous noise. 

A note on the track image: The panorama photograph was taken from the middle of Snake Lagoon, facing the eastern forest margin of the lagoon. The recording was made from within the forest itself. At the time the photograph was taken, on 5th December 2024, Snake Lagoon, like most of the inland lagoons of Kangaroo Island, was dry, although its fertile soil floor was nevertheless green with flora, richly fertilised by the droppings of Kangaroo Island Kangaroos and Tammar Wallabies feeding on that same flora. Its dryness was due to a protracted period of unseasonal drought, a drought that was a major contributing cause to the devastating Black Summer bushfires of 2019-2020. Those bushfires also raged through the coastal forests surrounding Snake Lagoon, which are seen, here, in this photograph, four years after the bushfires.

Related track: https://soundcloud.com/hearingbeings/20241205-wind-and-red-wattlebird-snake-lagoon-early-summer. (An excerpt from the first part of this longer recording, featuring the dawn calls of the Red Wattlebird.)

2024.12.05 A Windswept Early Summer Dawn at Snake Lagoon, Kangaroo Island.

Dawn chorus on the wetland. You can hear these species on the recording: great reed warbler (primarily), common cuckoo and mute swan
Date: 8. 6. 2025
Time: 4.05 - 5.30 am
Weather conditions: temperature 16°C, wind: 2m/s, partly cloudy
Place: Vranovice, South Moravia
Equipment: Telinga parabolic dish

Great reed warbler - dawn chorus on the wetland

COMMON SANDPIPER (Actitis hypoleucos)
SONG IN DISPLAY FLIGHT

This sound-portrait of a Common Sandpiper on its breeding grounds reveals the insistent and highly rhythmic "sewing-machine" song, given  as the bird circles around the loch side just after midnight on the 6th June 1997.  At times, insects drone close against the windcage.

The atmospheric roar of distant breakers on the Uig Saltmarsh can be heard in the background, along with "bleats" from Snipe, and faint calls from Ringed Plover and Greenshank.

The title of the piece is the Gaelic name for this species, meaning literally "Fidler-Bird by the Loch".

Uig Saltmarsh, Timsgarry, Uig Penninsula, Isle of Lewis.

Captured with  a Sony MZ-R3 Portable MiniDisc Recorder, using a pair of Sennheiser K6ME66 short-gun electrets.   Note that this is my only Soundcloud item in which I have used electret microphones and a non-linear recorder

Fidhleirbord - An - Locha - Common Sandpiper

Field sound recordist and archivist of vanishing sounds in natural Iandscapes. Highly commended in the Sound of the Year Awards 2024 - Best Natural Sound.

Near infrasound in Cranes fighting

Bo Söderström

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Bo Söderström

Bo Söderström

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