digitS'
Garden Master
"Turkey Vultures have been increasing in number across Northward America since the 1966 ... were threatened by side-effects of the pesticide DDT ... fall victim to poisons or lead in dead animals."
There is where the conservation efforts had to take effect.
"Despite their size, Turkey Vultures are often driven off by smaller Black Vultures, Crested Caracaras, Zone-tailed Hawks, and other species." link
My mentioning both (other) species of hawk reflects what I might see soaring in the sky on a summer day. They would come in contact and conflict, perhaps. I have seen Sharp-shinned fly straight up at soaring Redtails, probably to threaten them away from nest sites. Eagles and Osprey "cruise," often above water.
Another shift in population I've noticed is with those Sharp-shinned. Kestrels were once common in nearby farmland. Since I see Sharp-shinned in cities as well as suburbs, humans are probably responsible for decreasing one favorable environment while increasing the other. The benefits of English sparrow and Starlings populations, must favor the new guy. Kestrel hawks always seemed to be interested in small rodents. I never see them these days! Oh, I see the rodents ... hopefully the Redtails and owls do, too!
@so lucky , I wouldn't "trust" a Redtail with a chicken. All of the birds of prey are remarkably aggressive carnivores. That doesn't mean we need to shoot them outta the sky. ... i wonder what air pollution does for bird populations ... maybe, i don't want to know ...
Steve
There is where the conservation efforts had to take effect.
"Despite their size, Turkey Vultures are often driven off by smaller Black Vultures, Crested Caracaras, Zone-tailed Hawks, and other species." link
My mentioning both (other) species of hawk reflects what I might see soaring in the sky on a summer day. They would come in contact and conflict, perhaps. I have seen Sharp-shinned fly straight up at soaring Redtails, probably to threaten them away from nest sites. Eagles and Osprey "cruise," often above water.
Another shift in population I've noticed is with those Sharp-shinned. Kestrels were once common in nearby farmland. Since I see Sharp-shinned in cities as well as suburbs, humans are probably responsible for decreasing one favorable environment while increasing the other. The benefits of English sparrow and Starlings populations, must favor the new guy. Kestrel hawks always seemed to be interested in small rodents. I never see them these days! Oh, I see the rodents ... hopefully the Redtails and owls do, too!
@so lucky , I wouldn't "trust" a Redtail with a chicken. All of the birds of prey are remarkably aggressive carnivores. That doesn't mean we need to shoot them outta the sky. ... i wonder what air pollution does for bird populations ... maybe, i don't want to know ...
Steve
Last edited: