Well given the description of male from that site,i'd say its's a male?it says that male has red rump and female has not (which idk ig it's true abot females?).I can not tell from your pictures, but if he/she is an adult you can visually sex him/her. This website explains the differences between the genders: RED RUMPED PARROT .
Thank you,and thank youLooks male to me. Blue suffusion and red rump.
Welcome to the Avenue
ThanksYou have a male.