領角鴞有幾長氣?How many times do Collared Scops Owls call in a month?

(ENG version follows)

20240513 apr lantau nightbird

【領角鴞有幾長氣?】

夜行性嘅貓頭鷹神出鬼沒,究竟無交電話費嘅佢哋,要點樣喺漆黑嘅夜晚中溝通呢?

根據我哋嘅「大嶼山被動聲學監測研究」初步分析,單喺今年一月同一個研究地點,竟然總共錄到超過2萬6千下領角鴞叫聲!

作為一種本地廣泛分布而且常見嘅雀鳥,領角鴞有獨特易認嘅叫聲,每隔大約十秒就會發出「屋」一聲,佢哋就係靠住響亮嘅叫聲同friend子溝通。

神算王考考大家:
如果得一隻領角鴞喺度叫,究竟2萬6千下叫聲,要連續叫幾耐先叫得完?

答案:
開估啦!如果得一隻領角鴞喺度叫,都要連續叫70幾個鐘先叫得完!大家不妨試吓記熟佢嘅叫聲,喺夜晚聽吓佢哋會唔會就喺附近~

*此計劃由 #大嶼山保育基金 贊助


 [Owl Fun Facts - How many times do Collared Scops Owls call in a month?]

Nocturnal creatures like owls appear mysteriously. How do they communicate in the pitch-black night?

According to our preliminary analysis from the passive acoustic research in Lantau Island, we recorded a staggering total of over 26,000 calls of the Collared Scops Owls at one of our research sites in January this year! 

As a common local bird that is widely distributed, the Collared Scops Owl has a unique and easily recognizable call, emitting a "hoot" every ten seconds or so to communicate with friends.

Quiz challenge:
If there was only one Collared Scops Owl calling, how long does it take to complete all the calls in a continuous sequence?

Answer:
It would be a marathon of over 70 hours of hooting! Why not try to familiarize yourself with its call and listen out for it at night – it might just be nearby.

This project is funded by #LantauConservationFund

#香港觀鳥會 #HKBWS #鳥類保育 #自然保育 #可持續大嶼

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