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Posts Tagged ‘Nest’

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I spend almost 4 days late June 2017 recording in Þjórsárver area, which is a tundra southeast of Hofsjökull glacier. It was shortly after the road administrator open the Sprengisandur route across the highland, so there was still not much traffic. It was very early this summer so it was possible for me to record birds activity in nests.
When I arrived at Eyvindakofaver I saw an Arctic fox sneaking around a stone cairns and an angry Snow Bunting flying around. It was a clear message for something interesting to record.
The weather was boring for recording. It was cloudy, the temperature about 4°C and the wind was SW, 5-10 m/sec. But the stone cairn was a suitable cover for the microphones. So I put up my gear and started recording just before midnight and then went to sleep.
At 3:40 the wind suddenly went down for about 30 minutes which was the only minutes with calm weather this four days in the area. Calm weather means normally better detail recording for the birds’ activity and deeper listening to far distance sounds.
Usually Snow Bunting lay eggs two times during the summer so this was likely the previous nesting time.
It is necessary to listen to the whole recording but suddenly something happens in the nest which we humans can guess was probably a brutal rape or other domestic violence.
If you think this was something else, feel free and leave a comment below.
Quality open headphones are recommended while listening in silence at low level, or in speakers at low level.

(256 kbps / 59,4Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH20 NOS
Pics: Canon EOS-M
Weather. Cloudy, around +3°C, SW, 2m/s
Location: 64.613944, -18.575462

Auglýsingar

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Vorið 2011 benti allt til þess að geitungar myndu eiga erfitt uppdráttar. En það gerðist þó að trjágeitungur byrjaði að búa til hreiður yfir skúrhurðinni hjá mér. Ekki leið á löngu þar til hreiðrið var á stærð við mandarínu. Eggin, sem líklega voru allt að því 15 að tölu, fóru dag frá degi stækkandi og dökknuðu. Að staðaldri var ekki annað að sjá en að í því væru tvær þernur að sísla við eggin. Á daginn var drottningin í stanslausum ferðum, eða að meðaltali inn og út um opið á 2-4 mínútna fresti. En um nóttina fækkaði ferðum sem urðu þá á 20 – 30 mínútna fresti.
Daginn eftir að þessi upptaka fór fram, sem var 7. júlí, eyddi ég búinu því eggin voru greinilega að klekjast út, sem gert hefði alla eyðingu erfiðari.

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Queen kill a worker
Wasp traffic recorded close to Wasp nest in Reykjavik 7th of July 2011. First session was recorded when the hair of the mic´s furry was so close to the wasp nest´s door the queen could not access in to the nest. Slowly trough the session the queen gets more angry. And when I moved the mic from the nest she killed one of the two workers in the nest (sorry, I did not record that).

Sækja mp3 skrá (196kbps / 17.5Mb)

The second session is recorded with the mic more far from the nest. The queen comes and goes when searching for food in daily life.
Most of the audible sound from the nest is the queen and workers footsteps and wing flaps when the queen leaves or accesses the nest.

Sækja mp3 skrá ( 196kbps / 10,8Mb)

Recorder: Sound Device 552 (24/96)
Mic: Rode NT4 w/Dead Kitten
Pix: Canon 30D (see more pictures)

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