Chris du Feu announced new species codes, they should be included in the species code lists of birdring.
e-mail 2.Aug. 2018:
In response to a request I have issued codes for hybrids between Aythya ferina and Aythya nyroca.
These are:
90470 Aythya ferina X Aythya nyroca Sex of parents unknown
90471 Aythya ferina X Aythya nyroca A.f. Male X A.n. Female
90472 Aythya ferina X Aythya nyroca A.f. Female X A.n. Male
Chris du Feu announced new species codes, they should be included in the species code lists of birdring.
e-mail 2.Aug. 2018: In response to a request I have issued codes for hybrids between Aythya ferina and Aythya nyroca.
These are: 90470 Aythya ferina X Aythya nyroca Sex of parents unknown 90471 Aythya ferina X Aythya nyroca A.f. Male X A.n. Female 90472 Aythya ferina X Aythya nyroca A.f. Female X A.n. Male
Chris