White-throated Swift (Aeronautes saxatalis)

The fast flying White-throated Swift (Aeronautes saxatalis)
The fast flying White-throated Swift (Aeronautes saxatalis)


The White-throated Swift is a medium-sized bird known for its swift and agile flight, sleek body, and distinctive white throat patch. Adults typically measure around 6.5 inches (16.5 cm) in length, with a wingspan of approximately 15 inches (38 cm). They have a dark, glossy plumage that aids in camouflage against the rocky cliffs where they often dwell. Their wings are long and slender, adapted for rapid and maneuverable flight, while their short bills are perfect for catching insects mid-air. Juveniles resemble adults but may have less contrast in their plumage.

Habitat and Distribution

White-throated Swifts are primarily found in the western regions of North America, ranging from the southwestern United States through parts of Mexico. They inhabit rugged, rocky terrain such as canyons, cliffs, and gorges, where they nest in crevices and on ledges. These birds are particularly well adapted to arid environments and are often seen in desert landscapes, although they may also occur in mountainous regions.

Behavior and Ecology

White-throated Swifts are highly adapted for aerial foraging, feeding primarily on flying insects such as flies, beetles, and mosquitoes. They are renowned for their impressive flight abilities, performing intricate maneuvers as they hunt on the wing. Their swift and agile movements enable them to navigate through narrow passages and steep cliffs with ease. Breeding pairs typically construct cup-shaped nests made of twigs, feathers, and saliva, which they attach to vertical rock faces. During the breeding season, males perform aerial courtship displays to attract females.

Conservation Status

The White-throated Swift is not currently considered globally threatened, although local populations may be impacted by habitat loss and disturbance. Conservation efforts are focused on protecting nesting sites, particularly in areas where cliffs are subject to human development or recreational activities. As an insectivorous species, White-throated Swifts may also be vulnerable to pesticide use, which can reduce their prey availability.


The White-throated Swift is a fascinating species well adapted to its rugged habitat and aerial lifestyle. Its graceful flight and striking appearance make it a favorite among birdwatchers and enthusiasts. By understanding the ecology and behavior of the White-throated Swift, we can better appreciate the importance of conserving its unique habitat and ensuring the long-term survival of this remarkable bird.

Field Guide Description

“Black above, black and white below, with long, forked tail. Distinguished from Violet-green swallow, (page 322) by longer narrower wings, bicolored underparts. In poor light, may be mistaken for Black Swift but smaller, with faster wingbeats. Common in mountains, canyons, cliffs. Nests in crevices.”

Field Guide to the Birds of North America, Third Edition, pg 262

Classification

KingdomAnimalia
PhylumChordata
ClassAves
OrderApodiformes
FamilyApodidae
GenusAeronautes
Speciessaxatalis

Resources

Northern Flicker (Colaptes auratus)


The Northern Flicker (Colaptes auratus) is a medium-sized woodpecker found across North America. It belongs to the family Picidae, which includes woodpeckers, sapsuckers, and flickers. This species is known for its distinctive sharp bill, behavior, and widespread distribution.

Northern Flicker nesting in the cedar siding of a Big Bear mountain cabin.
Northern Flicker nesting in the cedar siding of a Big Bear mountain cabin.

Description

The Northern Flicker exhibits sexual dimorphism, with males and females displaying different coloration. They have a length ranging from 28 to 36 centimeters (11 to 14 inches) and a wingspan of approximately 42 to 54 centimeters (16.5 to 21.3 inches).

  • Plumage: The upperparts of the Northern Flicker are brown with black barring, while the underparts are beige or tan with black spots. They have a black bib on their chest and a prominent black crescent on the breast. The undersides of their wings and tails are a vibrant yellow or red, depending on the subspecies.
  • Head: Their head is distinctive, with a gray face, a long, slightly curved bill, and a black malar stripe extending from the base of the bill to the neck.
  • Behavior: Northern Flickers are primarily ground foragers, often seen hopping on lawns or probing the soil for insects with their long, barbed tongues. They also feed on ants, beetles, termites, and fruits.

Habitat

Northern Flickers inhabit a variety of habitats, including open woodlands, forest edges, parks, suburban areas, and occasionally urban environments. They prefer areas with scattered trees and ample open ground for foraging.

Breeding and Nesting

Breeding season for Northern Flickers typically begins in late April and extends into August. They are cavity nesters and will excavate their own nest holes in dead or decaying trees, fence posts, or even buildings.

  • Eggs: Clutch sizes usually range from 3 to 8 eggs, which are white and elongated.
  • Incubation: Both parents participate in incubating the eggs, which lasts for about 11 to 14 days.
  • Fledging: The young birds fledge after approximately 25 to 28 days and remain dependent on their parents for several weeks after leaving the nest.

Migration

Approximate range/distribution map of the Northern Flicker (Colaptes auratus). In keeping with WikiProject: Birds guidelines, yellow indicates the summer-only range, blue indicates the winter-only range, and green indicates the year-round range of the species.
Approximate range/distribution map of the Northern Flicker (Colaptes auratus). In keeping with WikiProject: Birds guidelines, yellow indicates the summer-only range, blue indicates the winter-only range, and green indicates the year-round range of the species.

While some Northern Flicker populations are migratory, others are year-round residents. Migratory populations breed in northern regions and winter in southern areas, while non-migratory populations may remain in the same area throughout the year.

Conservation Status

The Northern Flicker is widespread and generally considered to be of least concern in terms of conservation status, according to the International Union for Conservation of Nature (IUCN). However, habitat loss and fragmentation, as well as competition for nest sites with invasive species such as European Starlings, pose localized threats.

The Northern Flicker is a fascinating species with its distinctive appearance, behavior, and adaptability to various habitats. Understanding its ecology and conservation needs is crucial for ensuring the continued well-being of this iconic woodpecker across its range. Further research into its nesting habits, population dynamics, and response to environmental changes can aid in effective conservation strategies.

Field Guide Description

“Two distinct groups occur: “Yellow-shafted Flicker” in the east and far north, and the “Red-shafted Flicker” in the west. These flickers have brown, barred back; spotted underparts, with black crescent bib. White rump is conspicuous in flight; no white wing patches. Intergrades are regularly seen in the Great Plains. “Yellow-shafted Flicker” has yellow wing lining and undertail color, gray crown, and tan face with a red crescent on nape. “Red-shafter Flicker” has brown crown and gray face, with no red crescent.”

Field Guide to the Birds of North America, Third Edition, pg 318

Classification

KingdomAnimalia
PhylumChordata
ClassAves
OrderPiciformes
FamilyPicidae
GenusColaptes
Speciescauratus

References

Western Gray Squirrel  (Sciurus griseus)

The Western Gray Squirrel (Sciurus griseus) is a tree squirrel species native to the western United States. Known for its striking appearance and arboreal lifestyle, this species plays a significant ecological role in its habitat.

Western Gray Squirrel  (Sciurus griseus) enjoying a peanut in the San Bernardino Mountains, California
Western Gray Squirrel  (Sciurus griseus) enjoying a peanut in the San Bernardino Mountains, California

Description

The Western Gray Squirrel displays notable characteristics in its appearance and behavior.

  • Size and Coloration: Adults typically measure between 46 to 61 centimeters (18 to 24 inches) in length, including their bushy tail, which comprises about half of their total length. They weigh between 400 to 700 grams (14 to 25 ounces). The coloration of their fur varies geographically but generally includes shades of gray, with white underparts and a distinctive white fringe on their tails.
  • Habitat and Range: Western Gray Squirrels inhabit a variety of forested habitats, including mixed coniferous forests, oak woodlands, and riparian areas. Their range extends from Washington and Oregon through California and into parts of Nevada.
  • Behavior: These squirrels are primarily arboreal, spending much of their time in trees. They are agile climbers, using their strong hind limbs and sharp claws to navigate branches with ease. They build nests, called dreys, out of twigs and leaves in the canopy for shelter and raising young.

Diet

The Western Gray Squirrel is omnivorous, with a diet consisting of a diverse array of food items.

  • Vegetation: They feed on a variety of nuts, seeds, fruits, berries, and acorns. Oak trees are particularly important food sources, and these squirrels play a role in seed dispersal and forest regeneration by caching and forgetting seeds.
  • Insects: In addition to plant matter, they also consume insects, bird eggs, and small vertebrates, supplementing their diet with protein-rich prey.

Range

Reproduction

Breeding typically occurs from late winter to early spring, with females giving birth to one to six young, though litter sizes usually range from two to three. The gestation period lasts approximately 36 to 40 days. The young are born hairless and helpless, relying on their mother for warmth and nourishment until they are weaned at around 10 to 12 weeks of age.

Conservation Status

The Western Gray Squirrel faces several threats to its populations, primarily due to habitat loss and fragmentation, as well as competition and predation from invasive species such as the Eastern Gray Squirrel (Sciurus carolinensis). Additionally, urbanization, logging, and wildfires have further impacted their habitat and population dynamics. While specific conservation efforts vary across their range, maintaining and restoring suitable habitat and implementing measures to mitigate human-wildlife conflicts are essential for the long-term survival of this species.

The Western Gray Squirrel is a charismatic and ecologically important species in western North American forests. Understanding its biology, behavior, and conservation needs is crucial for preserving its populations and ensuring the health of forest ecosystems where it resides. Continued research and conservation efforts are necessary to address the various threats facing this iconic tree squirrel species.

Classification

KingdomAnimalia
PhylumChordata
ClassChordata
OrderMammalia
FamilyRodentia
GenusSciurus
Speciesgriseus

References

Edward Lawrence Schieffelin

Edward Lawrence Schieffelin, a rugged and determined prospector, carved his name in the annals of American history as the man who discovered silver and founded the legendary mining town of Tombstone, Arizona. Born on May 7, 1847, in the small town of Wellsboro, Pennsylvania, Schieffelin embodied the spirit of adventure and exploration that characterized the American West during the late 19th century. From his humble beginnings as a prospector to his eventual success in striking it rich, this biography delves into the life and achievements of Ed Schieffelin, shedding light on his extraordinary journey and his enduring legacy in the American mining industry.

Edward Lawrence Schieffelin
Ed Schieffelin

Early Years and Adventurous Spirit

Edward Lawrence Schieffelin, known as Ed, was born into a family of eight siblings. Raised in a modest household, he developed a strong work ethic and a sense of wanderlust from an early age. Ed’s adventurous spirit led him to leave his hometown in pursuit of opportunities out West when he was just a teenager. Inspired by stories of the California Gold Rush, Schieffelin set out on a quest for fortune and adventure into California, Death Valley, Colorado, New Mexico and Arizona.

In 1877, at the age of 30, Schieffelin arrived in Arizona Territory. The region was known for its hostile terrain, inhabited by hostile Native American tribes and infested with outlaws. It was an untamed and dangerous land, yet Schieffelin saw the untapped potential hidden within the rocky mountains and rugged landscapes.

The Discovery of Tombstone

Undeterred by the challenges, Schieffelin embarked on a solo prospecting expedition in the southeastern part of Arizona Territory. Despite being warned by soldiers at the nearby Fort Huachuca about the “all he would find would be his own tombstone,” Schieffelin remained undeterred and ventured into the wilderness.

After several months of searching and enduring hardships, Schieffelin struck silver in 1877. His find, located in the area that would become Tombstone, Arizona, ignited a rush of prospectors and speculators. Schieffelin named the mining district “Tombstone” in response to a friend,  Al Sieber who predicted he would only find his own tombstone.

As the news of Schieffelin’s discovery spread, the town of Tombstone boomed with activity. Miners, gamblers, and businessmen flocked to the area, transforming the once desolate region into a thriving mining town. Schieffelin, known for his eccentric personality and adventurous spirit, became a legend in his own right.

The Legacy of Tombstone

Tombstone, under Schieffelin’s influence, rapidly grew into a bustling frontier town. The rich silver veins of the area attracted numerous mining companies, turning Tombstone into one of the wealthiest towns in the West. The town quickly developed essential infrastructure, including saloons, theaters, banks, and a newspaper, the “Tombstone Epitaph,” which chronicled the tumultuous events that unfolded in the region.

Schieffelin, though he had made his fortune, continued to lead the life of a prospector, always searching for the next big strike. However, he faced his fair share of challenges and setbacks. The mines faced legal disputes, water shortages, and labor conflicts, which took a toll on the town’s prosperity. Despite the challenges, Tombstone remained a symbol of the American frontier spirit and resilience.

Ed Schieffelin Monument

A 25 ft tall monument is erected near to spot of Ed Shieffelin original claim in Tombstone. The monument represents the type of marker a miner makes in claiming a strike. A plaque on the monument reads, “Ed Shieffelin, died May 12, 1897, aged 49 years, 8 months. A dutiful son, a faithful husband, a kind brother, and a true friend.” The monument is located just to the East of Ed Schieffelin Monument road, north of the town of Tombstone.

Raven ( Corvus corax )

The Raven ( Corvus corax ) is one of eight subspecies of Ravens distributed throughout the world. Also known as western or northern raven, this large black bird is a member of the Corvidae family of birds which also contains crows, jays and magpies. This bird is a rather large and features solid black feathers which offers a dramatic and ominous appearance.

Raven ( Corvus corax ) sitting on a coral fence at the Grand Canyon Western Ranch.
Raven ( Corvus corax ) sitting on a coral fence at the Grand Canyon Western Ranch.

The raven is a large bird, known to average 25 inches in length and 2.6 pounds in weight and heaviest of the passerine or perching birds. This species is renowned for its intelligence and commonly used to test animal problem solving ability. This species has a world wide distribution and can thrive in a large variety of climates. The bird is an opportunistic omnivore finding sources of nutrition, feeding on carrion insects, grains, berries, fruit, small animals, other birds, and food waste. The are common features around campgrounds for the food sources left by human activity.

Range map of the Common Raven
Range map of the Common Raven

The raven has a long history with man in culture, literature and superstition. Many Native American tribes cultures regard the bird as a trickster or a cosmic messenger. Edgar Allen Poe’s infamous poem forever linked this bird with ominous overtones and symbolism for in western culture. The National Football Team even has a football team named for this special mischievous bird.

Field Guide Description

“Large with a long, heavy bill and long wedge-shaped tail. Most common call is a low drawn-out croak. Larger than the Chihuahuan Raven; note thicker, shaggier throat feathers, and that nasal bristles to not extend as far our on the larger bill. Range: Found in a variety of habitats, including mountains, deserts, coastal areas. Numerous in western and northern part of range; uncommon and local, but spreading in Appalachians.”

Field Guide to the Birds of North America, Third Edition, pg 318

Classification

KingdomAnimalia
PhylumChordata
ClassAves
OrderPasseriformes
FamilyCorvidae
Genus Corvus
Speciescorax

References