Shoebill sound effect? (or video with their call / sound)

Hi Pond5 forums! I'm looking for the clattering call / sound of a Shoebill bird - they're large creatures that chip their beaks together to make a sound not unlike a wooden percussion. The only video option I've found with sound is $150 (over on Jukin Media), and we usually look for sounds in the $5-$25 range. Does anyone know of options like this?

Cheers!