Piet

The list that is an appointment: frequent sneezing or fits of it, wet sneezes, discharge from the nares, crusty or stained feathers above the beak, swollen or watery or crusty eyes, tail bobbing, open-beak breathing, clicking or wheezing, fluffed and sleepy, eating less, voice changing.

And audit the room for irritants, which is the part people skip: aerosols, air freshener, perfume, hairspray, scented candles, plug-ins, smoke from cooking or a fireplace, cleaning products near the cage. Overheated non-stick pans are not an irritant, they are fatal, so keep both of them well away from the kitchen.

Your instinct about two birds is right in principle and does not apply here. More than one bird sneezing matters when the sneezing is frequent or wet or has other signs with it, because that is how something infectious looks moving through a cage.

Two birds sneezing dryly since the radiators came on is two birds in the same dry room. Context is doing the work, not the headcount.

Two things to know even though yours looks like an ordinary moult. A growing feather has a blood supply, so a broken blood feather can bleed: gentle pressure and ring somebody if it does not stop quickly.

And come in if new feathers grow back looking wrong, twisted or discoloured or clubbed, or if they do not grow back at all. Plucking and barbering are their own conversation, usually stress, boredom or hormones, and worth ruling out medically first rather than assuming it is behavioural.

The version that is mine rather than yours: lying down on the cage floor rather than in a hut, not being able to perch or falling off, fluffed and sleepy and less responsive, tail bobbing or effort in the breathing, eating less, droppings changing.

And the one people miss, suddenly starting to lie down when she never did before. Yours has done it for a while in a hut and wakes up fine, which is a different picture entirely.

The line between yours and mine: occasional dry sneezes with clean dry nares on an active vocal bird is normal. Frequent sneezing, wet sneezes, discharge, crusty or stained feathers above the nostrils, swollen eyes, tail bobbing, open beak, clicking or wheezing, going fluffed and sleepy, eating less, or his voice changing.

Do not wait to collect several of those. Birds hide illness well enough that one is reason to ring.

Adding the reason the distinction matters rather than just the signs. Vomiting in a parrot can come from infections, a crop problem, or toxins, and heavy metal from chewing something unsafe is a real one in a bird with the run of a room.

Birds also go downhill quickly, so the messy version is a same-day phone call rather than a wait-and-see. What you have described is a smug bird in love with your finger and a bell. Different thing entirely.

Three weeks of new behaviour in spring is hormones and imprinting, which is what the thread has said. The one alternative worth ruling out is pain: a bird that turns suddenly, particularly one that objects to being touched in a specific place, can be sore or unwell.

You would expect company: fluffed feathers, eating less, droppings changing, limping, going quiet. If none of that is there, treat it as behaviour, keep a long sleeve on, and reward him for being calm rather than for performing.

Adding the pieces that turn sleepiness into an appointment: tail bobbing with each breath, a change in droppings or appetite, her voice sounding different, and losing interest in the people she normally harasses.

Parrots are very good at hiding illness and increased sleep is often the first visible thing, which is why the question you asked is a reasonable one rather than fussing. Nothing you have described is on that list. Keep an eye on how long rather than whether.

A day is about the limit with everything topped up. Past that somebody looks at them daily, and that is the whole rule.

Two things the trust-building answers do not cover. Hormones: a tiel can get protective and moody around a spot he has decided is a nest, so take out huts, boxes and dark corners, give him ten to twelve hours of dark quiet, and rearrange the cage now and then.

And pain. A bird that was friendly and turned, especially one that objects to being touched in a particular place, can be sore. You have had the hissing since July alongside normal eating and flying, so this is behaviour rather than illness. Worth knowing which is which.

Adding the vet list, since the thread has correctly told you this is a happy bird. What I would want to see him for: shivering while fluffed and still, wings drooping rather than held, tail bobbing or any effort in his breathing, sleeping much more than usual and especially on the cage floor, droppings or appetite changing, falling off the perch or struggling to balance.

Fluffed and trembling together usually means cold or unwell. Warm the room gently and ring somebody rather than watching it overnight.

Occasional sneezing is normal in birds, much like us. Frequency and discharge are what change the picture.

Night song on its own is not a health problem, so the reassurance in this thread is fine. The things that would change my mind are in the day, not the night: fluffed up and quiet when he should be busy, tail bobbing with each breath, any noise in his breathing, droppings or appetite shifting, weight coming off.

You say he is fine in the day. Then treat this as a light and routine problem and shorten his day. Long days push hormones up, and a hormonal male sings at whatever hour he likes.