Sterilized barn owl pellets from Owl Brand Supply Company and Discovery Kits come in three sizes and from two regions of the United States, including SW US and NW US.
Here are the size ranges for both regions, which are also described in each product detail. The general rule of thumb is, the larger the pellet, the more prey there are in it.
Please note, we cannot make any guarantee of what is inside the pellet. Only you can do that when you dissect it!
Economy or Small -- 1.0" to 1.49". These pellets are terrific for young learners and tight budgets. They most often include a skull and a smaller selection of bones and many teachers report filling out an entire bone chart.
Standard or Medium -- 1.5" to 2.0". These pellets are the most commonly purchased pellets and include 1-3 prey in them, almost always more than enough to fill out a bone chart or two. They can include more than one prey type also as many teachers report finding a vole and a bird in one pellet.
Premium, Jumbo, or Large -- 2.0" and larger. Premium pellets are a terrific choice for a variety of reasons. The most common reason is that the pellet is huge. We're surprised the owl survived gagging up this pellet sometimes! Because they are large, they will often include 3 and more prey. And because of that, a teacher can pair two students with one pellet to save money.