PIF threats to breeding score - continental

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Threats to Breeding (TB-c) indicates vulnerability due to the effects of current and probable future extrinsic conditions that threaten the ability of populations to survive and successfully reproduce in breeding areas within North America (i.e., unlike other global scores, TB-c is actually “continental”). Evaluation of TB-c includes threats to breeding habitats, as well as other factors that interfere with reprodu... more

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  • TB-c

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