oh for sure! my bird koa who passed away loved me more than anyone else; she would kiss pictures of me when my mom showed them to her on her phone, she would bite everybody's fingers when they held her or bite their noses when they kissed her, but when i held her she would get all fluffy and rest her butt on my hand lol, and when i gave her kisses she'd kiss my nose. my bird cricket gets mad at me when i leave for school; when i visit my mom and birds he'll always be really mad at me the first day and pinch me, but then he'll get over it and nuzzle into me when i give him cheek kisses. those are just some examples though, i think that all birds love in different ways, but i've never seen a bird who doesn't show any affection to their owner. i'm sure your birds love you too!