i am very new to canaries, so i would appreciate some help and advice

i bought a canary pair that brother and sister, never intending to have them breed... just to live in a "platonic" relationship in my biggest community cage. they are about 6 months old now. just recently, i noticed that the male was trying to court the female and also mating with her often, so i separated them. the male i put into a bachelor cage with other males, and the female stayed in the large community cage.
what i have been noticing since i did that is the female trying desperately to build a nest in the large community cage. this isn't so bad, but she is pulling out her own feathers and attempting to build nests all over the place.... on the seed hopper, on the floor, on the perches.
has anyone ever seen a canary hen pull out her own feathers before? she is twisting her head around and trying to pull her back and chest feathers out

sometimes she succeeds, and if she doesn't she pulls her feathers forward with her beak and tries to make them flat on the perch or the seed hopper to try to make a nest with her feathers. she then lays down in the area. what can i do for her? should i move her? leave her? try to pair her up with a different male that i have to see if this will sort of help her with her drive to make a nest? i really don't know what to do for her
