I just started researching about the Pequin pepper (Capsicum annuum) and from what i have learned so far... it sounds like the plant like partialy shady the best. In the wild it usually flourishes along creek beds under trees. usually because the birds that feed on the peppers roost in trees and deposit the seeds under those trees. so the plant has eveolved to those conditions.

I have seen the bushes used (and trimmed) as a hedge around a house before and it still provided plenty of peppers... but I'm sure the havest would have been larger if the plant was untoiuched.

lots of good info on chilipequin.com. including a nice thread on the various names how they are used/misused.

Here is a link that might be useful: chilipequin.com

im growing both chilepequin and chiletepin they both are doing fine in full sun, and have had tons of ripe pods from both!
paul

Strange. I'm getting a 403 error trying to access the link above.

Josh

Bird pepper can be either a piquin or a tepin.

Lousy chile taxonomy.