While waiting for my favorite Eagle Owl in Germany and Latvia , I am watching Great Horned Owls.

Owl Research Institute ( ORI) makes possible to watch these owls at Osprey nest cam and Great Horned Owl cam, both close to the Institute in Charlo, Montana. ORI webpage provides knowledge about owls in an accessible way
https://www.owlresearchinstitute.org/
BTW, Denver Holt, the founder and president of ORI, is the person who conducted research on Snowy Owls in Barrow, Alaska
viewtopic.php?f=69&t=112&start=720
I am finally able to distinguish a male and a female by their voices, their calls differ a little.
Osprey nest cam
https://www.youtube.com/watch?v=tOnBE-sJ-VU
25-01-2019
Mating sound resembles a teapot whistle
https://www.youtube.com/watch?v=j2Y-iz3hSK8
27-01-2019
Nice closeups
https://www.youtube.com/watch?v=-NZSECutEYw
Great Horned Owl cam
https://www.youtube.com/watch?v=nXp5Uw4mKPs
26-01-2019
Mating
https://www.youtube.com/watch?v=sgyjinDueeQ
27-01-2019
Voices of male and female and begging call (previous season owlet?)
https://www.youtube.com/watch?v=eKV95wjGZN4