| ORIGINAL BOOK REVIEW by Dr. Rainer R. Erhardt "Well, there is help on the horizon and anyone seriously interested in color genetics should take a look at Linda Rubin's book: COCKATIEL GENETICS MADE EASY! Though this book is primarily directed to breeders of cockatiel mutations, there is enough information in this volume to teach anyone the secrets of dealing with recessive, sex-linked, and dominant mutations..." ACBM, Vol. 65, No.12 CLICK TO READ THE REST OF THE REVIEW! 112 pages, 15 chapters, glossary & more! |
Copyright 2006 Linda S. Rubin
| Multiple Bird Households by Linda S. Rubin |
| Series by Linda S. Rubin |
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| DESCRIPTION & GENDER IDENTIFICATION OF CINNAMONS Copyright © 2003 LINDA S. RUBIN CF Genetics Consultant/Panel Judge www.CockatielsPlusParrots.com Selected Q&A's "From My Mailbox" I do not advise performing DNA analysis to sex young cockatiels (unless you are in a tremendous hurry to sell a youngster of a particular gender), because in a few months you should be able to determine the genders of youngsters from one another simply by observing their behavior. However, Cinnamons are also sexually dimorphic and you will see physical differences after each of the initial molts they undertake. All fledglings will always feather out to appear the same color as the hen, however, as the chicks go through their baby and juvenile molts, the male offspring will change in physical appearance. After the baby molt, and as young as the juvenile molt, young males begin to acquire their yellow facemask of maturity that will be seen as increasing yellow pigment spreads throughout the face. Males as young as four to six months of age will begin to whistle, warble, hop, bow, and strut about, opening their shoulders at the wing joint, and performing repetitive, rapid beak-tapping on nearby objects. Over time, young males begin to lose the yellow or white under-wing spots in their primary flight feathers as well as their white or yellow barrings underneath their tail feathers. Upon the completion of their full adult molt, these feathers will appear solid brown, matching the rest of their plumage. The facemask will appear full yellow and their ear covert feathers will display bright orange cheek patches. Cinnamon hens will not change outwardly. Hens will retain the under- wing spots and under-tail barrings, and any yellow on their face will remain the same without change through the molt. A less obvious sign is the retention of their duller-orange (or, as I prefer to say, “more sedate orange”) cheek patches. Hens are also quieter by nature and usually vocalize with a two- syllable call note (e.g., “eek-eek”). They are less adventurous in behavior than males with the exception of becoming broody and seeking out nesting sites when they approach full maturity at 12 to 24 months of age. |
| DESCRIPTION & GENDER IDENTIFICATION OF CINNAMONS Copyright © 2003 Linda S. Rubin All Rights Reserved |
| c. 2005 Linda S. Rubin click on thumbnail to enlarge image |