Institutions like educational institutions for children, young people and adults (such as NGOs, public schools) are allowed to use Let’s bird-videos for free.
Personal contact before use is very welcome anyway.
Institutions like TV broadcasting transmitters, film production companies etc. are allowed to use Let’s bird-videos (picture & sound) and parts of them for a fee common in this sector of industry (per minute, including source naming). Enquire here.
Example for the usage of Let’s bird-video material (from 01:50 on).