A Quick Guide to Ceres and What They Mean

May 2, 2021
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Stormy(M): blue Australian budgie
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What is a cere? The cere is the fleshy covering of the base of the upper mandible, through which the nostrils open. It can also be used in the sexing of a budgie.

Basic Ceres:
Light pink cere: Juvi, recessive pied, or Ino (albino, lutino, creamino) males
Dark blue cere: All other males
Light blue and white cere: Young females, or some females when not in "breeding condition"
Light brown cere: Most females when not in "breeding condition"
Dark brown "wrinkly" cere: Females in breeding condition

Unusual Ceres:
Male's blue cere turning brown: An indicator of a serious health issue, such as testicular cancer. See a vet ASAP.
Spotted dark blue and light pink cere: This happens to some dominant pied males.
Green cere: Some males and females can appear to have a green cere in certain lighting. Check in different lighting to see if it's blue. If not, see a vet.

If anyone has anything to add, or any changes, just comment! I hope this helps some people, I see questions on the sex of budgies a lot on here :)
 
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PippTheBananaBirb

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Brown ceres in males can indicate nutrient deficiencies too. So if your bird is on a pellet/seed only diet and they get a brown cere, diet can be the cause. An avian vet visit is always a good idea though.
 
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OP
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May 2, 2021
2,969
Media
4
Albums
2
6,392
Vermont, USA
Parrots
Stormy(M): blue Australian budgie
Picasso(F): green Australian budgie
Apollo(F): sky blue dominant pied Australian budgie
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Brown ceres in males can indicate nutrient deficiencies too. So if your bird is on a pellet/seed only diet and they get a brown cere, diet can be the cause. An avian vet visit is always a good idea though.
Yes, I just said testicular cancer because it is definitely something people NEED to watch for in their budgies. A brown cere in males can have many health-related causes, but testicular cancer is one of the most extreme.
 

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