Sentences with phrase «ruddy ducks»

Ruddy ducks, which were brought by humans to the UK in the 1930s and 40s, are a threat to the European white - headed duck.

The organization states on its website that the position is based on detailed research and that «we are faced with a stark choice: either we act to stop ruddy ducks spreading from the UK, or we stand by and watch as the white - headed duck is pushed ever closer to extinction.»

In the case of ruddy ducks, the RSPB supports eradication — typically by hunting.

Armadillos, badgers, great - horned owls, hog - nosed skunks, javelina, pronghorn antelope, porcupines, great blue herons, ruddy ducks, snapping turtles, turkey vultures, long - tailed weasels, marmots, mourning doves, red - tailed hawks, sandhill cranes and ringtails.

I In the fall and winter seasons, Red - Breasted Mergansers, Ruddy Ducks and Common Loons come to visit.

The refuge hosts a variety of local wildlife and birdwatching including ruddy ducks, herons, western and California gulls, coots and mallards.

The lake here offers a wonderful array of bird life: egrets, herons, hawks, blue - billed ruddy ducks, cormorants, mallards, etc..

Biologists will identify the ruddy ducks, and the sharpshooters will do the rest.

Sharpshooters and biologists are joining forces to rid Spain of hundreds of ruddy ducks which arrived this year from Britain and France.

According to the Spanish Ornithological Society, SEO, the threat lies in the mating habits of the ruddy ducks, which were rarities in Spain until this year's invasion.

During the normal mating season, the penises of Lesser Scaup ducks grow about 4 centimeters longer than average, and those of Ruddy Ducks grow about 15 centimeters longer.

The unlikely alliance to destroy the ruddy ducks was forged by Spain's nature department, the National Institute for Nature Protection, ICONA.

At a presentation here this week at the 47th annual meeting of the Animal Behavior Society, researchers described their observations of two types of duck: Lesser Scaups and Ruddy Ducks (pictured).

In the same experiment with the Ruddy Ducks, the males» penises didn't grow any longer than they usually do during mating season, but one of the males maintained his length for twice as long as his rivals did.

The blue on the bills of ruddy ducks and the faces and rumps of mandrills comes from the protein collagen.

He explains that the ruddy duck, which is native to both North and South America, was introduced into private collections in Britain and France from the Caribbean during the 1940s, but soon became feral.

«Today, we have 700 to 750 individuals of the species,» says Martin, «but if action is not taken now, the white - headed duck could soon be outbred by the invading ruddy duck, and wiped out in Spain, the only Western European country with a viable population.»

«It's a tough little bird,» says Martin, who adds that the ruddy duck's mating habits are more akin to what he describes as «gang rape» compared to the courtship ritual of its white - headed cousin.

The ruddy duck breeds with ease, and is not a fussy eater.

The campaign to eradicate the ruddy duck does not stop there, however.

There was a rise in North American bird species, such as the ruddy duck, intentionally introduced to Western Europe many times between 1945 and 1989, but not much of a rise in the East.

The North American ruddy duck is a beautiful creature, but its presence in nature preserves in the United Kingdom may not be good news for native species.

«The introduced North American Ruddy Duck disproportionately colonized protected areas and is a potential threat to the native European White - Headed Duck,» said Chris Thomas, a professor of Biology at University of York.