(De-indent) I have a solution, if everyone is interested. The "official" U.S. Gov't source of terminology used in firefighting, the Glossary of Wildland Fire Terminology has two enlightening entries. It includes Bambi Bucket, with the trademark symbol, with the definition "A collapsible bucket slung below a helicopter. Used to dip water from a variety of sources for fire suppression." (Note that it doesn't include a manufacturer.) However, it also includes a Helibucket, defined as "Specially designed bucket carried by a helicopter like a sling load and used for aerial delivery of water or fire retardants." While I don't mean to be US-centric, since it is an official term, maybe this article is better titled Helibucket?  FWIW, it also includes the term Bucket drops, meaning "The dropping of fire retardants or suppressants from specially designed buckets slung below a helicopter." As for your question about Monsoon buckets, that's produced in New Zealand, and used predominantly there and in Australia, I've not seen it even really marketed in the U.S. I've no idea if the term has been genericized "down under". There was an older brand, the Griffith bucket, that is referred to in one USFS document, but I have no information on it. Though I haven't added it to the article yet, there's a few others. The "Fire Attack Storm Tank", or FAST bucket is made by Simplex Manufacturing (article in the current issue of Vertical Magazine), and also the Cloudburst bucket, produced by IMS, also in NZ, and it is being marketed in the US and Canada. But unless you see these names on the bucket up close, the fire crews, and generally the popular media, still refer to the tool as a bambi bucket. ''''''