Diet Overlap

Tyrannus vociferans (Cassin's Kingbird)
Pheucticus melanocephalus (Black-headed Grosbeak)

Common Diet

Myrtillocactus geometrizans (Bilberry Cactus)

Common Habitat

Anza-Borrego Desert State Park, CA
Arches National Park
Arizona Mountains forests
Baja California desert
Bajío dry forests
Balsas dry forests
Beaver Creek Biosphere Reserve
Big Morongo Canyon Preserve
Bighorn Canyon National Recreation Area
Bryce Canyon National Park
Cabrillo National Monument
California coastal sage and chaparral
California Floristic Province
California interior chaparral and woodlands
California montane chaparral and woodlands
Canyonlands National Park
Capital Reef National Park
Carrizo Plain Preserve
Central Mexican matorral
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chihuahuan desert
Coachella Valley Preserve
Colorado Plateau shrublands
Colorado Rockies forests
Coronado National Monument
Death Valley National Park
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Fort Bowie National Historic Site
Glen Canyon National Recreation Area
Grand Canyon National Park
Gulf of California xeric scrub
Hovenweep National Monument
Jornada Biosphere Reserve
Joshua Tree National Park
Madrean Pine-Oak Woodlands
McGinty Mountain Preserve
Mesa Verde National Park
Meseta Central matorral
Mesoamerica
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Montezuma Castle National Monument
North America
Northern short grasslands
Organ Pipe Cactus Biosphere Reserve
Paine Preserve
Petrified Forest National Park
Philip L. Boyd Deep Canyon Desert Research Center
Pipe Spring National Monument
Point Reyes National Seashore
Reserva de la Biosfera El Vizcaino
Reserva de la Biosfera Sierra Gorda
Reserva de la Michilia
Rocky Mountain Biosphere Reserve
Saguaro National Park
San Dimas Biosphere Reserve
San Lucan xeric scrub
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Sevilleta LTER Site
Shortgrass Steppe LTER Site
Sierra de la Laguna dry forests
Sierra de la Laguna pine-oak forests
Sierra Juarez and San Pedro Martir pine-oak forests
Sierra Madre de Oaxaca pine-oak forests
Sierra Madre del Sur pine-oak forests
Sierra Madre Occidental pine-oak forests
Sierra Madre Oriental pine-oak forests
Sonoran desert
Sonoran-Sinaloan transition subtropical dry forest
Tamaulipan matorral
Tonto National Monument
Trans-Mexican Volcanic Belt pine-oak forests
Western short grasslands
White Sands National Monument
Zion National Park

Attributes / relations provided by
1Effectiveness of Dispersal of an Ornithocorous Cactus Myrtillocactus geometrizans (Cactaceae) in a Patchy Environment, Mónica G. Pérez-Villafaña and Alfonso Valiente-Banuet, The Open Biology Journal, 2009, 2, 101-113