
Very good to adress this issue. Only last year we lost a friend by birdstrike during cross country flight at reasonable altitude.
In Germany they have an Association for biological Flight safety (DAVVL) which investigates an informs about risk. Very interesting to leaf through those annual documents.
=> https://www.davvl.de/
And they have a strong recommendation to pass "aircraft relevant bird areas" at reasonable hight only (>2.000ft) to take care of breeding animals and to reduce risk of up flying bird and consecutive risk of colliding. The much our firt interest is focused on our own saftey, we must always arrange with nature as well.
=> https://www.cbd.int/cepa/cepafair/2008/germany-2008-05-en.pdf
And can anybody from EASA check following alert:
=> https://aviationreporting.eu/AviationReporting/
Thank you!