An English edition of the BVA-International standards are now available on the BVA website: BVA-International standard rules
Author: Dirk Van den Abeele
FAQ: How to determine the reduction percentage of the eumelanin for colour mutations?
FAQ: How to determine the reduction percentage of the eumelanin for colour mutations? We often read in the standards and articles that, for example, pastel
Update on *pallid* Agapornis fischeri
As with any possible new colour mutation, there are many opinions in the early stages. There are believers and non-believers. This is no different with
Why is pink the colour of virgin birds?
Ismael Galván of National Museum of Natural Sciences (Spain) uncovers to exciting role of porphyrin colouration and what it might mean in an ecological setting.
New proposed taxonomy for Estrildidae and Chloebia gouldiae
The last decades taxonomist classified the Gouldian finch (aka the Lady Gouldian finch, Gould’s finch or the rainbow finch) in the genus Erythrura. New research
FAQ: different expression gene after genetic introgression?
FAQ: is it possible that a gene has a different expression after genetic introgression (transmutation)? For a start: The expression of the gene will depend
A new case of parthenogenesis in California condor
A new case of parthenogenesis has been described in California condor (Gymnogyps californianus) Parthenogenesis is a relatively rare event in birds, documented in unfertilized eggs
Weekly newsletter
We have replaced our weekly newsletter with a system that notifies you as soon as a new post or article appears on the site.You can
Fallow mysteries – update
In 2018 we received information from a South African Agapornis breeder that the dun fallow Agapornis fischeri / Agapornis personatus could possibly be an allele
Fallow mysteries
Fallow mysteries By Dirk Van den Abeele Ornitho-Genetics VZW MUTAVI, Research & Advice Group Published BVA-International magazine February 2017 That the fallow mutations present in
FAQ: What is the best way to name the combination of a crossing-over with alleles of the same gene or epistatic genes??
FAQ: What is the best way to name the combination of a crossing-over with alleles of the same genes or epistatic genes? During the last
FAQ: use of capital letters in names of color mutations
FAQ: In the BVA-International nomenclature, the name of a mutation is never written with a capital letter (except at the start of a sentence.) That