Acting strange

Tilly's acting really weird this morning - Bought her a new rubber chicken last night, she didn't really have time to play with it so it was left near her bed.
Anyway this morning she keeps either going to it & whining or carrying it round & whining - it's really weird. She even kept leaving her breakfast to go & check it & whine at it - I can't make it out??
It's exactly the same as her old chicken which I got out & gave to her to let her know it's still here (only old one has no head, legs or squeak - which is why we got a replacement)
It's really weird - she's now put the new chicken in her bed
Any ideas why she's doing this? She normally loves new toys!!