5 months ago
Last edited at 12:44PM on 7/27/2013
It varies from species to species and from season to season. There is no 'one" bird that has the most -- a larger bird will naturally have more than a smaller bird. Even feathers per square inch will vary:
"The number of feathers on a bird varies from species, size, sex, age, health, season, and temperature of habitat. Most songbirds have between 1500 and 3000 feathers. The lowest recorded number is 940 for a hummingbird and the highest is 25,216 for a swan. Most birds have more feathers in winter for additional insulation against the cold."