The population of african grey parrots is decreasing day by day and we are gonna blame us for this act. Humans are the largest threats for all birds, no difference for african grey parrots also. Between 1993 to 2004 more that 359,000 african grey parrots were traded on the international market. Another thing we have to keep in mind is that the meat and body parts of african grey parrots are used in traditional medicines. So they are hunted very badly for this. WHen they are captured by humans and reach the market, their mortality rate ranges from 60-66%. So because of these reasons the species of african grey parrots are going down day by day and they rapidly decline in the wild and have been rated as endangered by the International Union for Conservation of Nature. In October 2016, the Convention on the International Trade of Endangered Fauna and Flora (CITES) extended the highest level of protection to grey parrots by listing the species under Appendix 1, which bans global and domestic trade in the species.
When you see an african grey parrot lose his appetite, have fluffy feathers, sluggishness and reduced walking abilities then you have to understand the fact that the parrot is infected by psittacine beak and feather disease. African grey parrots are commonly infected by this disease. But this disease can be curable with proper treatment.