Sierra saying Good Night to Beaker

Here is a video that I took of Sierra playing with my very tolerant bird, Beaker. The funny thing is that if Erik goes anywhere near his cage, Beaker tries to attack him but thankfully for me and Sierra, Beaker does not seem to mind Sierra trying desperately to befriend him. Every morning she uncovers his cage and always says Hi to him when she gets home. Recently, she has figured out how to climb up on top of the chair next to the table so she can be literally nose to nose with him. I just keep praising Beaker saying, thank-you for allowing this!!
She also kisses the fish tank. Imagine if she had a dog or cat...