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https://pubmed.ncbi.nlm.nih.gov/38117606
This study determined that certain pelvic measurements differ between male and female budgerigars, which can be used to sex them through radiographic pelvimetry.
https://pubmed.ncbi.nlm.nih.gov/38117606
This study determined that certain pelvic measurements differ between male and female budgerigars, which can be used to sex them through radiographic pelvimetry.