I don't think that, if cannabis seeds are used in bird seed mix, the resulting plants are the 'right' sort. Some varieties are very low in THCs (the component which produces the 'high' effect)
A type of cannabis that has a minimal amount of THC, as low as 0.5 percent, is hemp, according to the North American Industrial Hemp Council. Hemp is used for industrial and medical purposes.
Some strains of cannabis can have as little as 0.3 percent THC by weight. In other strains, THC makes up 20 percent of the weight in a sample. The National Highway Traffic Safety Administration reports that the average THC concentration in marijuana is 1 to 5 percent; in hashish, it is 5 to 15 percent, and in hashish oil, it averages 20 percent. THC in recreational doses of marijuana is highly variable and the lower the THC content in the marijuana, the more the user must consume to produce the desired effects.
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