The term "trauma" is a very broad and general category. This does not give specific information on the caused an animal death.

There have been cases where conservation officers list such a diagonsis when they cannot, or do not wish to, determine (or go into details) to find the cause of mortalities. This can be for a number of reasons, such as condition of the samples, or that the incident is not considered significant, (type of species and impact on the population).

Not all wildlife deaths involve the diagnosis of samples at a labratory. It may even be supportable to say that only in a few cases are labratories consulted (depending on the area, and service,of course).In these cases, local conservation officers make the determiniation. The type of testing of those that are sent to labs also varies, for a number of reasons.

If a professional, not connected to, or involved with the details of an investigation, says under media questioning that it is possible that noise from fireworks could result in bird deaths,what does that really tell us? Just that it is possible, under a specific set of circumstances, not that it was likely or even a reasonable consideration in this scenario.