I have 2 Sicilian buttercups - both are pullets. I have 1 that seems to be aggressive. Twice now when my back was turned she has jumped on my back. Last night she jumped clear up on my neck. Is she being aggressive towards me or what's going on? Neither one will let me pick them up but they will come running up to me like they want me to then as soon as I reach for them they take off. Anyone got any ideas?