Without reading the text of this tweet from CNN, can you figure out what's in the plastic bottle? Probably not.

That's right, at least 24 endangered cockatoos were found stuffed into plastic bottles in Indonesia during an anti-smuggling operation.

The birds, which are referred to as "critically endangered" were free from the bottles. One man was arrested in connection with the case.

Traffic Southeast Asia said on their facebook page that this type of smuggling is, "Not the first case of its kind and this method is commonly used to smuggle these protected birds for the exotic pet market."