If you can listen on headphones you can really sense the movement of the birds!

Between the months of March & May in south-eastern Australia, large numbers of Yellow-faced & White-naped Honeyeaters migrate north through the Blue Mountains into their winter feeding areas further afield. This recording was made just after dawn in Wollemi National Park and captured the sounds of flocks of honeyeaters as well as other bird species moving through the forest on a cool autumn morning.

You can download the full 24 minute track from https://wildambience.com/albums/a-morning-in-wollemi/

A Morning in Wollemi

A Morning in Wollemi - Sounds of the Autumn Honeyeater Migration

Species: Lesser Coucal Centropus bengalensis javanensis - calls
Location: Ipoh, Perak, Malaysia
Habitat: Ex-mining pools ‘wetlands’ near limestone hills
Date: 12th December 2018
Equipment: Nikon D500 SLR with Tamron SP 150-600mm f/5-6.3 Di VC USD, handheld with Rode VideoMic Pro Plus Shotgun Microphone
Remarks
The Lesser Coucal is a common bird and their calls fill the countryside and, as I live near an overgrown Chinese graveyard, we hear them often. The image shows the posture of birds when calling. The bird leans forwards with the head curved down, beak open and throat distended. The classical calls are in the edited recording of the calls. They start off with a “ho-ho-ho” (Wells 1999) or “kok-ok-oo” (HBW 2018) rattling musical series of calls followed closely by “boot, boot, boot” calls. The sequence can interchange occasionally. The “bot” calls also gives it a local name of “boot-boot”. The calls can go on for long periods and are often in the mornings. At the Chinese graveyard near our home I even hear them calling at 4-5am. 
Amar
Amar-Singh HSS (Dato' Dr)
Ipoh, Perak, Malaysia

Lesser Coucal (Centropus bengalensis javanensis)- calls

Amar-Singh HSS

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