The breeding of canary X goldfinch mule – mbirdTraining
Canaries, hybrids, and British birds in cage and aviary. . Yellow Siskin Yellow linnet DARK CANARY MULES Yellow goldfinch Buff Twite. Please note that these images are extracted from scanned page
Impression ancienne d'oiseaux Linnet and Canary Mules, circa 1880 En vente sur 1stDibs
GOLDFINCH CROSSES
Greenfinch-Canary Mule — AVIARY AND CAGE BIRDS UK CARDS (1933) | PETCRAFT
Image of Greenfinch and Canary Mule, Bullfinch and Goldfinch Mule, Goldfinch and by European School, (19th century)
British Finch Mules & Hybrids | The initial pairing and information - YouTube