Book  (1988)  Page(s) 169.  
 
location 203/1, R. rubiginosa var. dimorphacantha X R. foetida 'Canary Bird', W. Paul 1911, yellow + vermilion, single, fragrant, medium site, solitary or up to 2, bushy, well-branched; dark green medium size matte foliage, fragrant, 5-7 leaflets; orange-red medium size, medium-glossy, glandular, rounded fruit; sepals upright, firm; few hips

Book  (1936)  Page(s) 124.  
 
Canary Bird (hybrid rubiginosa) W. Paul 1911; canary-yellow to vermilion, medium size, single, free-blooming, small foliage, growth 4/10, dense. Sangerhausen

Book  (1931)  Page(s) 22.  
 
ub.-H. Canarybird, kanarigeel met vermiljoen, W. Paul, 1911.

Book  (1922)  Page(s) 367.  
 
Canary Bird (S. Briar):- Flower canary yellow, tinted with crimson, single, medium size; early flowering. Growth shrubby habit. Distinct. H. Bu. [hedge, buttonhole? bush? Key does not list the abbreviation "Bu.]

Book  (1921)  Page(s) 104.  
 
[In a listing of rubiginosa hybrids] Canary Bird. Yellow, tinted with crimson.