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Bird Friendly Farm Criteria
|Height of canopy||
≥12 meters for the canopy of the stratum made by the native “backbone” species (usually an Inga spp.)
≥40 percent, measured during dry season after pruning
|Floristic diversity of trees and wood shrubs||≥10 woody species (in addition to the backbone species). At least 10 of these should represent 1 percent or more of all individuals sampled, and be dispersed throughout the coffee holding. Backbone species must be native to region.|
|Total floristic diversity||
The sum of all woody and herbaceous species counted in the sampling.
The “architecture” or profile of the coffee farm should show evidence of some layers or strata—preferably three.
|Leaf litter||Should be present; no minimum percentage required, but, together with living ground cover, soil needs protecting (as with organic criteria).|
Should be present; no minimum percentage required.
|Living fences||Where appropriate and feasible, should be present.|
|Buffer zones along waterways||Should exist and be composed of native vegetation. Along streams they should measure ≥5 meters wide (one each side); for rivers they should be ≥10 meters wide.|
|Visual characterization (gestalt)||
Should qualify at least for the category “traditional polyculture” (the more diverse category of the polyculture systems).
|Organic certification||Must have current organic certification by a USDA-accredited certification agency|
Los criterios de amigable a los aves en un solo vistazo en Español.