I also believe you can co-exist with the native wildlife as long as no man made disruption on a massive scale interrupts the ecology. We have lived on 24 acres for 18 years. From the first year we have had poultry, goats, cattle & misc. other animals. Our property backs up to a 296 acre parcel of woods/meadows & river bottom land. Our closest neighbors are 800 ft away (in front & to the side of our house) at the state road.
We originally saw fox, coon, skunk, coyote, deer, turkey & quail on a regular basis come into our back pasture from these woods. Some of our poultry free range & the goats/sheep all are stalled at night. We also have kestral, red tail hawk, barred owl, screech owl & a pair of barn owls that make an appearance.
The only thing we ever lost to avain & mammal predators was an occaisonal muscovy duck & any white colored guineas that hatched. The normal pearl & lavender were not ever bothered by the avain predators. Even my DDs brown spotted white rabbits that ran in a 1/4 acre lot were never bothered. All of that changed when the owners of the 296 acres logged the whole property behind us. We then had a 2 year problem with coyotes killing everything they could find. We lost around 20 goats & sheep, 30 muscovies, 19 geese & 4 turkeys. The coyotes had been there since we moved in but only became an issue once the habitat was destroyed. The other factor was that the coyotes had also crossed with dogs. They came at all hours of the day & nite & the frustration was so high I contemplated getting rid of all the livestock as we were keeping everyone under lock & key 24 hours per day & once we let the sheep/goats out to graze during the day (10 oclock to 3 oclock) we would lose one. Instead we added an alpaca to the existing horses & donkeys & split the herds up in smaller groups with at least one protector (by the way - most horses will also attempt to kill strange dogs/coyotes that come into their territory - at least mine do!). This along with killing 5 of the coy/dog crosses has resolved the issue. Our neighbors also killed a few of the large crosses & had a trapper come in and trap. A total of 33 animals were killed or trapped over a 500 acre parcel that year (note that all studies indicate that when coyotes are hunted - they reproduce more kits & more survive to adulthood). All of the ones killing livestock were large sized crosses. Once that was accomplished, things returned to normal. It has been 3 years now & I have not lost any other livestock. The 296 acre parcel has recovered & the ecology has rebounded. I will admit that for the first time in my life I "HATED" coyotes during that time. Now, I again no longer do.
The other problem we see is with the dwindling number of deer, birds, rabbits, quail & turkey. I believe it is a combination of the coyotes & the wild hogs that were owner released on the 296 acres for hunting. The hogs played a large role in changing the environment also.
In our 18 years here we have seen cycles from drought to flooding & the coyotes were around at all times. The only time we ever had a major problem was after the large scale logging. I had issues from neighborhood dogs running loose more than from the wildlife. As far as the natural ecology - it was affected by both the hogs & logging & I feel that those combined factors led to our situation.
As far as the tractored poultry & the penned ducks (call) we have never had an issue even though our "tractors" are only potable dog kennels with a tarped "A" line roof. I am sure that part of this is because my 6 dogs are in & out of the house at all hours & the poultry yard is encompassed in their "territory". That, along with the warning calls of the guineas & peafowl when something enters the yards seems to work well for us. And we still see the occainsional coon, oppossum & skunk in the yards.
So, for me, I feel you can co-exist in most habitats that are natural with the cycle of nature in balance. Once that balance is disrupted by major scale change - especially man made change - I feel that you will have issues until a natural balance returns to the affected area. Also please note that although I hunt only seldom - I am not against hunting for food. I also try not to personify animals with human charecteristics & understand that they are only acting on their ingrained survival instincts. They are not guilty of killing for pleasure as man does but only for survival. There is no hatred or malice intended by them. And likewise I do not kill for fun but when necessary I will do what I must to protect my livestock. But I try to do so selectively & only kill the guilty party. Even when so angry & distressed & when "hating" the coyotes - I did not try to exterminate them - only hunted & killed the offenders. Once the offenders were gone & the environment stabilized- the other coyotes returned to their natural prey & left our livestock alone.
As for the last 2 years - we again have geese, muscovies & sheep & goats all free ranging on our pastures. The coyotes I have seen are back to their normal size & we still hear them "sing" several times per year. I have not - nor has my neighbors - lost any livestock to the coyotes tha last 2 years. One neighbor did lose her cat to one though!