It takes patience and persistence! On a large open balcony, at first I sprayed every day, maybe even twice a day. Then less and less often, every two or three days depending on the traffic or the weather conditions. Two months and 4 bottles of spray later, I was rid of them!

It cannot deal with the birds on its own. In combination with tapes or spikes, the job gets done. It is effective even on its own, but only momentarily.

I cleaned very well from the filth of winged rats, sprayed continuously for 5-6 days on awnings, railings, partitions, etc., and in combination with the iridescent tape that you can find almost everywhere, the issue was resolved once and for all! I highly recommend it.

I follow the instructions and spray daily for the first few days and it is effective, the pigeons disappeared!!! It will show in the future how often it will need to be used

Surely I no longer have as many pigeons on the balcony as before, but they haven't left completely and they still dirty it. Maybe daily spraying is needed, I spray twice a week

It seems to be effective but, it also seems that the effect does not last. After 10 days of daily use, a three-day break brought ...disaster. And back to square one.

After trying nails and ultrasonic devices, I bought this one. I followed the instructions exactly and since then I haven't seen a pigeon on my balcony. It leaves a strange smell when sprayed, but it's very light and completely goes away after a while.

For a few minutes, the pigeons were gone and then after a while, the same thing happened again. It does have a really bad smell, but the pigeons were probably wearing masks - there's no other explanation :-)

It does not drive away pigeons right away. It takes about a month. You have to put it every day at first and the pigeons gradually decrease.

Then you need to put it once a week again. Generally, it is good to make it as difficult as possible for the pigeons (spikes, awnings, etc.), otherwise you will eventually have to put it on the balcony floor. And this simply requires using more liquid.

Generally, pigeons have very specific habits and it is difficult to change them. Therefore, you will always have to periodically put liquid where they go and sit.

I used it according to the instructions and saw results very quickly. The smell is unpleasant while using it but disappears afterwards. I used it on a very large surface, like a terrace.