I don't know anything about birds, Is there an emergency vet in your area that you can get him to today?

I second that he needs a vet today. Birds are notorious for hiding their illness as long as they can and by the time they act sick, it is often too late. In the wild this is instinctive to keep them from attracting predators.

He could have some sort of infection. Also, does he have access to some type of grit he can eat to grind his seeds?

I'm not aware of allergies in birds.

A male parakeet may be regurgitating as part of a courtship ritual. If he is otherwise healthy, then you have nothing to worry about. If he is vomiting, that is a sign of disease. Vomiting in birds is similar to mammals; it originates in the proventriculus (stomach) and involves nausea and usually serious illness. If he is just regurgitating from the crop, he should be acting 100% normal, eating well, normal activity level.

If you are not sure what is going on, the please see a veterinarian who is experienced with budgies as soon as possible.

Take this for what it's worth, since I only know about chickens, but when that kind of thing happened, it was very very serious and needed immediate attention. But, in Dot's case, curable with surgery (her crop was plugged up).

i have a small bowl of grit, true, but i just talked to my friend, who also has a bird, and hes a vet! yet, he not quite sure wats going on!(he just a beginer) thanks though for the advice. ill go find an expert, though my friend did say that he might be regugerating...what ever that is. something to do with babies and feeding.(i have a female in my cage, if i forgot to mention) could someone tell me what regugeration or whatever is?

i now know what regugerating is, but whats up with his tail feathers? why are they falling out? could someone please explain that? the thing is, the black part of the tail feathers are falling out! is this molting? the feathers looked full grown! will they grow back?

Is the bird tame? can you handle him and does he do it when you are holding him or is he doing it to a mirror or toy or some other specific object? If that's the case then he is just being a little boy. Especially if he is acting and playing normally. If he is actually throwing up then it's most likly a crop infection that will need medical attention. Also take the grit out and don't offer him anymore. Parakeets and Parrot type birds don't need it and can actually eat so much they can cause crop impaction. As long as there are no bald spots on the bird then the feather loose is probably normal molting.

Lisa

Are you sure it's throwing up & not regurgitaion?
This can sometimes be confused.

Tails feathers can simply mean your budgie is moulting.

There are allergies in the bird world & they can be very common. Mainly the allergies are a result of incorrect diets being given to the bird.

Is he lethargic? Fuffed up constantly? Eating drinking well? How old is he?

The grit depends a lot on where you are. In Australia grit is widely used with no complications. In the US when grit is used, for some reason you end up with complications. Grit is fine as long as it's not over done. Or, in place of grit a calcium perch, sand perch or cement perch is fine.

I use grit for my birds.
Budgies are prone to certain diseases as well.

Take him to the vet to get a check up for him.

Here is a link that might be useful: About Grit

Regurgitation (for feeding chicks, the hen, the pet owner, or a mirror) is usually the food being brought up to the mouth in a manner where it is held in the beak and kind of played with, or the bird may actually 'drool' a little. He may even do it more when playing with a certain toy and get it all over the toy. A cockatiel I once owned had a bad habit of feeding his foot!

With vomiting, the food usually comes up and the bird slings his head to get rid of it.

I also recommend removing the grit. I've offered it before for the charcoal and minerals, but I no longer give it to any of my birds.
When your bird is doing this, is he near the female and what is her reaction?

I raised budgies for years, regular and show varieties as well as canaries. They do not need grit since they hull the seed, eat the center and discard the husk. Chickens etc. just eat the entire seed and therefore need the grit in their gizzard to "mash" the husk from the seed in order to digest the food inside it. Now that you've said there is also a female (hen) in the cage it sounds like typical regurgitation, nothing to worry about. Budgies (parakeets) normally only molt once a year in stages but it's not uncommon to have strays now and then. What are you feeding the birds by the way, hopefully not just bird seed. They really need fresh greens daily (not iceburg lettuce or celery) with a bit of fruit occasionally. Surprisingly to most people, dandelion is the most nutritious green you can give them, any part of the plant, provided you are positive that it has never been in contact with fertilizer or weed killers. They also love hot hot peppers, the hotter the better, the kind most people can't eat. Birds don't have the sensors in their tongue that are bothered by hot chile type peppers.

The other thing I forgot to mention is that now is "mating season" "nest building time" etc. That will definitely cause an onset of the male regurgitating some food and possibly even plucking a feather as an offer of nesting material.

As I said grit can depend on where ya are as to whether it's used & advised.

IF used should be used wisley, don't over do it....
It is only in the US it is shunned apon to use grit, funny enough it's also in the US grit has caused health problems in birds when used. Here in Australia it's common to use it & we don't have problems either. Perhaps different kinds are being used or different techniques??????

oblivian, I assume that you have an avian vet. It's very important that you make an appointment whenever you have a concern that frightens you. As you can see, nearly each and every person who answered you had a slightly (or very) different answer! Get your bird to the right vet.

A budgie getting complications due to eating grit are so few and far between as to be almost non-existant, that being said it has happened but that's not why I stopped using it. It's a fact, they don't need it, it's an expense, so why buy it. Naturally the pet supply companies like Hagen etc want to sell it to you, they also like to sell you sandpaper perch covers and sandpaper cage liners, two items which can cause more foot problems with birds than grit is ever going to do. They are also very happy to sell premium blend budgie foods full of excess fatty seeds and brightly colored granules, shredded coconut etc, not for the health of the birds sake, for the sake of getting more money out of your wallet because people enjoy seeing their birds eating and thinking they're doing them good when in fact they aren't.
The whole idea that birds such as budgies require grit stems from 19th century practice that continued up until the near 1980's when there was little if any bird phsiology taught other than what was done on domestic fowl mainly chickens. Every vet on every continent learned chickens need grit so all birds need grit and that was probably the extent of their training in birdland. That's not the case today with more and more vets well trained or specialized in avian vetrinary.

Ok I never intended to argue this pont in the first place.....

It's what each decides & prices on anything can differ to where you are as well as availablility.

I don't think I even mentioed sand paper perches......

This was all I was trying to say from the website left in previous post:
"In the US, the use of grit is usually discouraged, especially if offered freely (ad libitum) which may lead to obstructive gastritis. In Australia, where grit is frequently given to pet birds, few problems have been reported. At the moment there is no explanation for these geographical differences."

I guess our budgie seed mixes are very different to yours also from what you just said is in yours.

he is male, a rare, blue american parakeet, he is in fact fluffed up as someone said, he tucks his foot under his feathers, im not sure if its molting, since only 2 feathers came out, and the weird thing is, the pointy part never came out, its like the feathers were bent and ripped off. no bald spots,diet is fine, he eats the same meals and water as his friend, who happens to be a girl, so the seeds he throws up is probably regugurating(ugh, the female eats the seeds for some odd reason) they eat a regular meal of fruit, seeds, and veggies a day, regular activities, and he is at maximum, a year old. the thing is, he always seems a bit lost, yet with his friend, he seems just fine.

My parakeet is 7 to 10 years old and has acquired what looke like a fatty tumor on his behind, he doesn't seem ill. He still eats and fly's around his cage. I afraid it might get bigger.