Wildlife Camera

Rancho Canada del Oro OSP

Boccardo Trail

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Wildlife on the Trails

Cameras located in several spots on Rancho Cañada del Oro Open Space Preserve help us understand how wildlife are affected by the presence of trails. As these photos suggest, many different species have found occasion to take a stroll where we normally see hikers, bicyclists and equestrians. The cameras provide information on trail use that aids in planning new facilities.

Bobcat  

Bobcat
Bald Peaks Trail

Bobcats are considerably smaller than the other wild feline found at Rancho, the mountain lion, and they have stubby tails. Crepuscular (active a t dawn and dusk) and elusive, bobcats are excellent hunters, preying on rabbits, birds, squirrels and sometimes even larger animals. Males have territories that may cover 25 to 30 square miles. Females have smaller ranges that never overlap with other female bobcats.

Feral Pig  

Feral Pig
Catamount Trail

Wild domesticated hogs and Eurasian boars introduced centuries ago make up this nuisance population. Feral pigs root up vegetation and create wallows out of springs and ponds. This can lead to the degradation of water quality and may impact other species. They are the most prolific large wild mammal in North America. Sows can have 2 litters a year and breed in any season. A favorite food of feral pigs is acorns.

Wild Turkeys  

Turkey
Catamount Trail

Wild turkeys from the southwestern U.S were first introduced to California in 1877 as game birds. In the mid- and late-1900s California Fish & Game increased the state’s turkey populations by capturing and relocating established birds. Turkeys feed primarily on vegetation. They prefer a mixed habitat of trees and grassland. This provides a variety of edible plants as well as trees for cover and roosting.

Mountain Lion Family  

Mountain Lion Family
Bald Peaks Trail

Mountain lions– also known as cougars, pumas and catamounts – are nocturnal animals. They are recognizable by their size: Males can weigh as much as 150 pounds and be 8 feet long, including a long, graceful tail. Except while a female is rearing young, cougars are solitary, living and hunting alone. A primary food source is deer. Male lions may cover a hunting range of up to 100 square miles in search of prey.

Black-tailed Deer  

Black-Tailed Deer
Catamount Trail

A sub-species of mule deer, black-tailed deer are adapted to many different habitats. They feed on a variety of plants, often browsing the buds, shoots, leaves and berries of trees and shrubs. Males have antlers they shed each winter after the mating season. Females bear their young in the spring, often having twins or even triplets. Fawns usually stay with their mother through their first year.

Gray Fox  

Gray Fox
Catamount Trail

The gray fox is an omnivore. It eats grains, fruits, birds, small mammals, insects, human food, garbage and carrion. Its preferred habitats are woody, brushy and rocky with a creek in the vicinity. Foxes establish their dens in rock outcroppings, hollow logs, brush piles and similar sites. Most active from sunset to sunrise, foxes are generally shy and elusive. They are the only canine known to climb trees.

Curious cow at Rancho  

Cow
Mayfair Ranch Trail

Cattle play an important role in grassland management at Rancho Cañada del Oro. Their grazing can interrupt the life cycle of invasive plants before they go to seed. This gives native grasses a chance to spread. When the desired amount of plant cover is consumed, the cows are moved to avoid over-grazing. Cows are curious but shy and are, so far, unable to open gates by themselves.

 

 

 

 

 

 

 

Copyright 2005 Santa Clara County Open Space Authority

Milpitas-Berryess Study Area -- Click for Description