MULE CANARIES.--1. _Mules between a Canary and a Goldfinch_, present in their plumage an agreeable mixture of the colours of their parents. The most beautiful which I have seen was greyish ash-colour in the middle of its crest, and silvery white on the rest of its head and nape; a broad orange border surrounded the beak, and the neck was adorned with a white collar; the back was a dusky grey, with black streaks; the rump white, the under part of the body of a snowy whiteness; the under tail-coverts, the wings and first quill-feathers white, but the others, as well as the coverts, black, edged with yellow; the middle of the wing was also adorned with a beautiful golden yellow spot; the white tail had a black spot on the sides, the white beak was tipped with black, the feet were white. The mother of this beautiful bird was white, with a greenish grey crest. In general, one may be sure of fine birds when yellow or white females are paired with goldfinches. 2. _Mules between the Canary and the Siskin._--If the mother be a green canary, the mules will resemble a female siskin; but, if she is white or yellow, their colours are lighter, yet without differing greatly from those of the siskin, which they always resemble in shape. 3. _Mules between a Canary and a Green-bird, or a Citril Finch._--If the hen canary is neither white nor yellow, the mules differ little from the common grey or green canary, except in being more slender, and having the beak shorter and thicker. 4. _Mules between a Canary and a Linnet_ will be speckled if the mother is white or yellow, but if she is grey they will be like her, except that the tail will be longer. The other mules are rarer, because more difficult to obtain, as we shall see elsewhere.