What the strip-making is telling you
Peach-faced lovebird hens are famous for cutting paper into long, even strips and tucking them among their tail feathers to carry back to a chosen site. It is skilled, purposeful nest building, and a hen in that mode is usually experiencing a hormonal push to breed whether or not a mate is present. She will work at envelopes on a desk, the liner under her cage grate, tissues, and cardboard with complete focus, and she may become protective of the corner where the strips are accumulating. Simply taking one piece of paper away achieves little, because the drive remains and the next scrap becomes the project.
Persistent nesting behaviour is worth reducing rather than just tidying after. A hen who stays in breeding condition for long stretches works hard, eats differently, guards territory fiercely, and may begin laying eggs, which carries real health risks for a pet bird.
Remove both the material and the nest site
Work through her world in two passes. First, the materials: keep desks and tables she lands on clear of loose paper, store tissues and napkins in closed containers, cover cage liners so she cannot pull them through the grate, and retire cardboard chew toys during this phase, since they are strip stock to a motivated hen. Check the room she flies in before each out-of-cage session, not just her cage, because most hens gather their best strips on expeditions around the home.
Second, the destination. Remove sleeping huts, tents, boxes, and deep bowls she can sit in, and block access to drawers, gaps behind furniture, and any cupboard corner she has claimed. Rearrange her cage perches and toys so the favoured nesting corner stops existing in its old form. If there is nowhere that reads as a cavity and nothing to build with, most hens wind down over a week or two.
Give the beak a job that ends
A lovebird still needs to chew and forage daily, so provide substitutes that do not end up as construction. Offer a shallow tray during supervised out-of-cage time with safe, plain items to work on — woven palm pieces, balsa, cork, and vegetables such as corn husks or leafy greens clipped to the tray — and take the tray away when the session ends so nothing is carried home. Scatter small food pieces in a snuffle-style foraging box on the tray to reward searching rather than strip production.
Keep handling calm and brief during this phase, scratching only her head, and avoid stroking her back or letting her sit in sleeves and pockets, which she can read as nest and mate signals. Maintain long, regular nights of darkness and quiet at the same times each day, which is one of the strongest everyday levers on breeding condition in small parrots.
When shredding becomes a health concern
See an avian veterinarian promptly if she lays an egg and then strains, sits fluffed on the cage floor, breathes with effort, or stops eating, since egg binding is an emergency. Also book a check if she lays repeatedly, loses weight, plucks around her vent, or becomes so cage-protective that normal feeding and cleaning are impossible. Your vet can assess her condition and discuss further steps for chronic laying; do not attempt hormone treatments or egg removal yourself.
If an egg does appear, ask your vet for advice before removing it, because taking eggs away immediately can prompt a hen to lay replacements and extend the cycle. For the daily work of prevention, KinsLe Care Teams lets everyone at home share the paper sweep, cover times and tray sessions as listed duties with timestamps, so one person's tidy desk is not undone by another person's forgotten envelope.