As an expert sommelier and brewer, I must admit that my knowledge of black toads is limited to my experiences with beverages rather than amphibians. However, I can certainly provide some insights based on the information you have given.
From what I understand, the black toad is a species of anuran, which refers to frogs and toads. It seems that this particular species has a relatively small range, making it one of the species with the smallest distribution in North America. This fact alone suggests that the black toad may be considered rare or at least uncommon.
Furthermore, the black toad's habitat is surrounded by desert, which adds another layer of complexity to its existence. Desert environments are generally harsh and unforgiving, with limited water sources and extreme temperatures. In such an environment, it can be challenging for any species, let alone a small amphibian, to thrive and maintain a stable population.
I must emphasize that my understanding of the black toad's rarity is based on the limited information provided. However, it is worth noting that population studies have indicated a stable population for this species. While this may be a positive sign, it does not necessarily mean that the black toad is abundant or common.
To further assess the rarity of the black toad, it would be necessary to consider factors such as population density, the number of individuals within its range, and the overall health of its habitat. Unfortunately, without access to specific scientific data or personal experiences in observing black toads, it is difficult for me to provide a definitive answer.
In my own experiences as a sommelier and brewer, I have encountered rare and unique beverages that are highly sought after by enthusiasts. These beverages often have limited production due to specific ingredients, traditional brewing methods, or the expertise required to create them. Similarly, the rarity of the black toad could be attributed to its specialized habitat and the challenges it faces in maintaining a population in the desert surroundings.
While the black toad's rarity cannot be definitively determined without more information, its small range and unique habitat do suggest that it may be a relatively uncommon species. Further research and observation would be necessary to fully understand the population dynamics and conservation status of the black toad.