This and like actions are more common than we wish to believe. Blue-Fronted Amazons of this sub-species are even more commonly abandoned. The reason tends to run along this line: The Parrot is purchased based on a combination of how pretty it is and it will make a wonderful accent in the living room.
What has the subspecies got to do with it?
I know that the BFA has two sub species- one that occurs in Central Brazil, Bolivia and the other in South Brazil and Argentina etc. Would love to know more.
The 2 subspecies, a.aestiva and a.xanthopteryx are quite different size wise, typically differ in behavior a bit and experience the onset of hormones differently. A.aestiva are smaller, with more blue, less yellow and generally a bit darker green. A.xanthopterxy are larger, with less blue, more yellow (on both the head and shoulders) and have brighter green bodies. Interbreeding is common, thus it is not unusual to see birds exhibiting characteristics of both subspecies. As you may know, small species amazons are known for typically having less severe hormonal issues and being overall more even tempered birds while "hot 3" amazons have earned their 'reputation' for bad attitudes and hormonal difficulties. A.aestiva actually are generally more on par with small species amazons behaviorally and during hormonal times with less extreme reactions while their larger cousins the a.xanthopteryx are really the ones who put BFA's firmly in the "hot 3" group, typically being a bit more 'difficult' overall in addition to the hormonal 'issues'. A.xanthopteryx are also much more common in the US, therefore there are more individuals out there than of the a.aestiva subspecies, though this is not true in other parts of the world where the a.aestive seems to be to more common subspecies.