How did the backyard bird feeders in the article increase competition in that ecosystem?

Backyard bird feeding is a well known type of human–untamed life communication in specific regions of the northern and southern side of the equator.

Explanation:

In territories where sustaining is mainstream in the Southern Hemisphere, supplemental encouraging may excessively profit acquainted winged creature species while driving with decreases of local species, possibly due to hetero specific competition.

However, Backyard bird feeders can bring about constructive outcomes on some feathered creature species, for example, improved overwinter endurance, expanded populace sizes and geographic range extension.