Birding Tips Online Bird Identification

Total Page：16

File Type：pdf, Size：1020Kb

Field Sparrow Bank Swallow Blue-winged Teal Red-eyed Vireo Pine Warbler American Wigeon Red-bellied Woodpecker Fox Sparrow Barn Swallow Cinnamon Teal White-eyed Vireo Prothonotary Warbler Downy Woodpecker Red-headed Woodpecker House Sparrow Cliff Swallow Forsters Tern Yellow-throated Vireo Tennessee Warbler Hairy Woodpecker Carolina Wren Savannah Sparrow North. Rough-winged Swallow Brown Thrasher Black Vulture Yellow-rumped Warbler Pileated Woodpecker House Wren Birding Tips • Species pictured in the male form in this brochure • Female and immature forms may vary widely • Use binoculars Song Sparrow Tree Swallow Gray-cheeked Thrush Turkey Vulture Hooded Warbler • Keep a journal Online Bird Identification • All About Birds: The Cornell Lab of Ornithology https://www.allaboutbirds.org/ White-crowned Sparrow Chimney Swift Hermit Thrush American Redstart Warbler Louisiana Waterthrush • Audubon: Guide to North American Birds https://www.audubon.org/bird-guide • Bird Watcher’s Digest https://www.birdwatchersdigest.com/bwdsite/learn/ identification.php White-throated Sparrow Scarlet Tanager Tufted Titmouse Black and White Warbler Cedar Waxwing • What Bird https://www.whatbird.com/ European Starling Summer Tanager Eastern Towhee Common Yellowthroat Warbler Eastern Whip-poor-will 550 Arkridge Rd | Hot Springs, AR 71913 | garvangardens.org Red-winged Blackbird American Coot Mourning Dove American Goldfinch Common Grackle Red-shouldered Hawk Dark-eyed Junco Common Merganser Osprey American Pipit Eastern Bluebird Double-crested Cormorant Bufflehead Duck House Finch Horned Grebe Red-tailed Hawk Slate-colored Junco Northern Mockingbird Barred Owl American Robin Indigo Bunting Brown-headed Cowbird Mallard Duck Purple Finch Pie-billed Grebe Sharp Shinned Hawk Killdeer Common Nighthawk Eastern Screech Owl Yellow-bellied Sapsucker Painted Bunting Brown Creeper Ring-necked Duck Northern Flicker Blue Grosbeak Great Blue Heron Belted Kingfisher Brown-headed Nuthatch Great Horned Owl Greater Scaup Northern Cardinal American Crow Ruddy Duck Olive-sided Flycatcher Rose-breasted Grosbeak Green Heron Gold-crowned Kinglet Red-breasted Nuthatch Northern Parula Lesser Scaup Gray Catbird Fish Crow Wood Duck Scissor-tailed Flycatcher Bonaparte’s Gull Little Blue Heron Ruby-crowned Kinglet White-breasted Nuthatch Eastern Wood Pewee Northern Shoveler Yellow-breasted Chat Yellow-billed Cuckoo Bald Eagle Blue-gray Gnatcatcher Ring-billed Gull Ruby-throated Hummingbird Common Loon Baltimore Oriole Eastern Phoebe Pine Siskin Carolina Chickadee Eurasian Collared Dove Cattle Egret Canadian Goose Cooper’s Hawk Blue Jay Purple Martin Orchard Oriole Rock Pigeon Chipping Sparrow.

Copy Link

Recommended publications

Vocalization Behavior of the Endangered Bahama Oriole (Icterus Northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation Valerie A
Loma Linda University TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works Loma Linda University Electronic Theses, Dissertations & Projects 3-1-2011 Vocalization Behavior of the Endangered Bahama Oriole (Icterus northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation Valerie A. Lee Loma Linda University Follow this and additional works at: http://scholarsrepository.llu.edu/etd Part of the Biology Commons Recommended Citation Lee, Valerie A., "Vocalization Behavior of the Endangered Bahama Oriole (Icterus northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation" (2011). Loma Linda University Electronic Theses, Dissertations & Projects. 37. http://scholarsrepository.llu.edu/etd/37 This Thesis is brought to you for free and open access by TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. It has been accepted for inclusion in Loma Linda University Electronic Theses, Dissertations & Projects by an authorized administrator of TheScholarsRepository@LLU: Digital Archive of Research, Scholarship & Creative Works. For more information, please contact [email protected]. LOMA LINDA UNIVERSITY School of Science and Technology in conjunction with the Faculty of Graduate Studies ____________________ Vocalization Behavior of the Endangered Bahama Oriole (Icterus northropi): Ontogenetic, Sexual, Temporal, Duetting Pair, and Geographic Variation by Valerie A. Lee ____________________ A Thesis submitted in partial satisfaction of the requirements for the degree of Master of Science in Biology ____________________ March 2011 © 2011 Valerie A. Lee All Rights Reserved Each person whose signature appears below certifies that this thesis in his/her opinion is adequate, in scope and quality, as a thesis for the degree Master of Science. , Chairperson William K. Hayes, Professor of Biology Stephen G.
[Show full text]
Buri on the Anatomy and Relations of the Swifts
286 l•ecentLiterature. LI-AukJuly Ridgway on ' New Birds of the Families Tanagrid•e and Icterid•eJl__ This is the seventh of Mr. Ridgway's series of papers describing nexv forms of American birdsT the 'preceding six having been published in 'The Auk,' Vols. XV-XVII (•895-r9oo). In the present paper Mr. Ridgway characterizesof the family Tanagridze one new genus• Irido- 5•hanes(type, Dacniss•ulcherrœmaSclater), and one ne•v speciesand five new subspeciesbelonging to other genera o•: the •amily. Of the •amily Icterid•e he characterizes t•vo new genera, Pseudaffelaius (type, Affelaius imlhurni Sclater), and •anlhojbsar (type, Oriolusj•avus Gmelin), and one new speciesand eight new sub•pecie•. Four o• the subspeciesoccur in the United States• namely, (t) •rclerus cucullalus sennelti, from the Lower Rio GrandeValley; (2) Affelaius•hoent'ceusforlls, ranging during migra- tions •rom Montana and the Indian Territory to and including the Rocky Mountains and southward to Arizona and northern Chihuahua; (3) Ag'•- laiuss•hoeniceusneutralis, ranging from the Great Basin Region o• the United States northward to eastern British Colmnbia and southward to northern lower California; (4) Affelaius 15koeniceuscaurinus, from the Northwest Coast District, ranging from British Columbia to northern California. Unfortunately Mr. Ridgway has adoptedthe name Scas•hidurusSwain- son •or the Boat-tailed Grackles, named 3IegaquLwalus by Cassin, Mr. Ridg•vay overlooking the fact that Sctt•[du•'tzs is a pure synonym of •uiscaltt$• Swainsonsupposing o•uiscalus to be untenableon accountof its supposedprior use in botany.--J. A. A. Buri on the Anatomy and Relations of the Swifts. •--Dr. R. Buri, of Bern, has recently published a lengthy paper • giving the results of an extended study of the wings of Cys•selusmelba and others of the Coracor- nithes; special attention has been given to the nerves of the wings, this portion of the anatomy having been worked out in the most painstaking manner.
[Show full text]
Predation by Gray Catbird on Brown Thrasher Eggs
March 2004 Notes 101 PREDATION BY GRAY CATBIRD ON BROWN THRASHER EGGS JAMES W. RIVERS* AND BRETT K. SANDERCOCK Kansas Cooperative Fish and Wildlife Research Unit, Division of Biology, Kansas State University, Manhattan, KS 66506 (JWR) Division of Biology, Kansas State University, Manhattan, KS 66506 (BKS) Present address of JWR: Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106 *Correspondent: [email protected] ABSTRACT The gray catbird (Dumetella carolinensis) has been documented visiting and breaking the eggs of arti®cial nests, but the implications of such observations are unclear because there is little cost in depredating an undefended nest. During the summer of 2001 at Konza Prairie Bio- logical Station, Kansas, we videotaped a gray catbird that broke and consumed at least 1 egg in a brown thrasher (Toxostoma rufum) nest. Our observation was consistent with egg predation because the catbird consumed the contents of the damaged egg after breaking it. The large difference in body mass suggests that a catbird (37 g) destroying eggs in a thrasher (69 g) nest might risk injury if caught in the act of predation and might explain why egg predation by catbirds has been poorly documented. Our observation indicated that the catbird should be considered as an egg predator of natural nests and that single-egg predation of songbird nests should not be attributed to egg removal by female brown-headed cowbirds (Molothrus ater) without additional evidence. RESUMEN El paÂjaro gato gris (Dumetella carolinensis) ha sido documentado visitando y rompien- do los huevos de nidos arti®ciales, pero las implicaciones de dichas observaciones no son claras porque hay poco costo por depredar un nido sin defensa.
[Show full text]
Flyer200206 Parent
THE, FLYE, R Volume 26,25, NumberNumber 6 6 tuneJune 20022002 NEXT MEETING After scientists declared the Gunnison Sage Grouse a new species two years ago, a wide spot on Gun- Summer is here and we won't have meeting until a nison County (Colorado) Road 887, has become an Wednesday, 18. It begin September will atl:30 international bird-watching sensation. Birders from p.m. in Room 117 Millington Hall, on the William around the ,world wait silently in the cold dark of a campus. The editors'also get a summer &Mary Colorado spring pre-dawn to hear the "Thwoomp! vacation so there will be no July Flyer, but "God Thwoomp! Thwoomp!" of a male Gunnison Sage the creek rise," there be an willing and if don't will Grouse preparing to mate. The noise comes from August issue. specialized air sacs on the bird's chest. And this is now one stop on a well-traveled 1,000 mile circuit being traveled by birders wanting to add this Gun- RAIN CURTAILS FIELD TRIP TO nison bird, plus the Chukar, the Greater Sage YORK RIVER STATE PARK Grouse, the White-tailed Ptarmigan, the Greater Chicken Skies were threatening and the wind was fierce at Prairie and the Lesser Prairie Chicken to the beginning of the trip to the York River State their lii'e lists. Park on May 18. Despite all of that, leader Tom It was not always like this. Prior to the two-year- Armour found some very nice birds before the rains ago decision by the Ornithological Union that this came flooding down.
[Show full text]
Catbird, Gray
Mockingbirds and Thrashers — Family Mimidae 449 Mockingbirds and Thrashers — Family Mimidae Gray Catbird Dumetella carolinensis Though the Gray Catbird breeds west almost to the coast of British Columbia, it is only a rare vagrant to California—the bulk of the population migrates east of the Rocky Mountains. But the species is on the increase: of 107 reports accepted by the California Bird Records Committee 1884–1999, one third were in just the last four years of this interval. Similarly, of the 20 records of the Gray Catbird in San Diego County, 10 have come since initiation of the field work for this atlas in 1997. Migration: Half of San Diego County’s known cat- Photo by Anthony Mercieca birds have been fall migrants, occurring as early as 24 September (1976, one at Point Loma, S7, K. van Vuren, Cabrillo National Monument, Point Loma 11–17 July 1988 Luther et al. 1979). Besides eight fall records from Point (B. and I. Mazin, Pyle and McCaskie 1992) certainly was. Loma, there is one from the Tijuana River valley 7–8 November 1964 (the only specimen, SDNHM 35095), Winter: Three wintering Gray Catbirds have been report- one from a boat 15 miles off Oceanside 26 October 1983 ed from San Diego County, from Balboa Park (R9) (M. W. Guest, Bevier 1990), and two from Paso Picacho 16 December 1972 (P. Unitt) and from Point Loma 7 Campground (M20) 29 October 1988 (D. W. Aguillard, November 1983–13 March 1984 (V. P. Johnson, Roberson Pyle and McCaskie 1992) and 17 November 2002 (T. 1986) and 31 October 1999–21 January 2000 (D.
[Show full text]
Does a Rival's Song Elicit Territorial Defense in a Tropical Songbird, The
ABC 2017, 4(2):146-153 Animal Behavior and Cognition https://doi.org/10.12966/abc.02.05.2017 ©Attribution 3.0 Unported (CC BY 3.0) Does a Rival’s Song Elicit Territorial Defense in a Tropical Songbird, the Pied Bush Chat (Saxicola caprata)? Navjeevan Dadwal1* and Dinesh Bhatt1 1Gurukula Kangri University, Haridwar, Uttarakhand, India *Corresponding author (Email:[email protected]) Citation – Dadwal, N., & Bhatt, D. (2017). Does a rival’s song elicit territorial defense in a tropical songbird, the Pied Bush Chat (Saxicola caprata)? Animal Behavior and Cognition, 4(2), 146–153. https://doi.org/10.12966/ abc.02.05.2017 Abstract -The purpose of bird song and the way in which it is delivered has been argued to be adapted mainly for territorial defense. We performed a field experiment with the combination of playbacks and a model to test how much song actually relates to increased territorial defense in the territorial tropical songbird, the Pied Bush Chat, during breeding season (Feb–May, 2015) at Haridwar, Himalayan Foothills, India. As expected, the results of the experiment indicated that song was the major cue used by territory holders to cope with rival intrusions. The song rate was particularly escalated during simulated territorial interactions when the model was presented with a playback song of conspecifics. Behaviors such as restlessness (perch change), the height of perch, and distance from the model appeared to be of relatively lesser importance. To our knowledge, no avian species from the Indian subcontinent has been studied to provide evidence that song can escalate aggressive response by a territory owner.
[Show full text]
Blue-Gray Gnatcatcher
Blue-gray Gnatcatcher Polioptila caerulea Taxa: Avian SE-GAP Spp Code: bBGGN Order: Passeriformes ITIS Species Code: 179853 Family: Sylviidae NatureServe Element Code: ABPBJ08010 KNOWN RANGE: PREDICTED HABITAT: P:\Proj1\SEGap P:\Proj1\SEGap Range Map Link: http://www.basic.ncsu.edu/segap/datazip/maps/SE_Range_bBGGN.pdf Predicted Habitat Map Link: http://www.basic.ncsu.edu/segap/datazip/maps/SE_Dist_bBGGN.pdf GAP Online Tool Link: http://www.gapserve.ncsu.edu/segap/segap/index2.php?species=bBGGN Data Download: http://www.basic.ncsu.edu/segap/datazip/region/vert/bBGGN_se00.zip PROTECTION STATUS: Reported on March 14, 2011 Federal Status: --- State Status: ID (P), KY (N), NJ (INC/S), NV (YES), NY (PB), RI (Not Listed), UT (None), UT (None), BC (8 (2005)), QC (Non suivie) NS Global Rank: G5 NS State Rank: AL (S5B,S3N), AR (S5B), AZ (S5), CA (S4), CO (S5B), CO (S5B), CT (S5B), CT (S5B), DC (S3B,S3N), DE (S5B), FL (SNRB,SNRN), GA (S5), IA (S4B,S4N), ID (S3?), IL (S5), IN (S4B), KS (S4B), KY (S5B), LA (S3N,S4B), MA (S4B), MD (S5B), ME (S2S3), MI (S5), MN (SNRB), MO (SNRB), MS (S5B), MS (S5B), MT (S1B), NC (S5B,S2N), NE (S4), NH (S4B), NJ (S4B), NM (S4B,S4N), NV (S4B), NY (S5), OH (S5), OK (S5B), OR (S3B), PA (S5B), RI (S4B), SC (SNRB,SNRN), SD (S1B), SD (S1B), TN (S5), TX (S3B), UT (S5B), UT (S5B), VA (S5), VT (S3B), VT (S3B), WA (SNA), WI (S4B), WI (S4B), WV (S5B), WY (S3?B), WY (S3?B), AB (SNA), BC (SNA), LB (SNA), MB (SNA), NB (SNA), NF (SNA), NS (SNA), ON (S4B), PE (SNA), QC (S4B), SK (SNA) bBGGN Page 1 of 6 SUMMARY OF PREDICTED HABITAT BY MANAGMENT AND GAP PROTECTION STATUS: US FWS US Forest Service Tenn.
[Show full text]
Factors Affecting Feeding and Brooding of Brown Thrasher Nestlings.-The Nest- Ling Period Is a Particularly Stressful Time in the Lives of Birds
GENERAL NOTES 297 wind. An adult California Gull (Larus c&ornicus) was flying east 5 m above the water, 50 m from the shore, close to 150 Barn Swallows (Hirundo rustica) that were foraging low over the water. One swallow, heading west, passed 1 m below the gull, which dropped suddenly and caught the swallow with its bill, glided for a few meters and settled on the water. The gull proceeded to manipulate the swallow in its bill for 30 set before swallowing the still moving bird head first. The gull sat on the water for 20 min, then continued its flight to the east. Most reports of adult birds being taken by gulls have occurred while the prey were on land or water, e.g., Manx Shearwater (Puffi nus &&us) and Common Puffins (Fratercula arctica) in nesting colonies as they go to and from their burrows (Harris 1965), sick or injured birds up to the size of geese (Witherby 1948), Rock Doves (Columba &via) (Jyrkkanen 1975) and Eurasian Starlings (Sturnus vulgaris) (Drost 1958) at grain piles and ground-dwelling birds which associate with gulls (e.g., Witherby 1948). Gull predation of adult birds on water is much rarer but does occur (Hafft, Condor 73:253, 1971). Attacks and capture of avian prey on the wing has rarely been reported and generally occurs over sea on migration (Drost 1958). Bannerman (1962) reports Herring Gulls (L. argentatus) capturing and eating Redwings (Turdus musicus) and Eurasian Blackbirds (2.’ merula) as they migrate over water by knocking the weary birds into the water.
[Show full text]
European Corn Borer, Ostrinia Nubilalis (Hübner) (Insecta: Lepidoptera: Crambidae)1 John L
EENY156 European Corn Borer, Ostrinia nubilalis (Hübner) (Insecta: Lepidoptera: Crambidae)1 John L. Capinera2 Distribution flights and oviposition typically occur in May, late June, and August. In locations with four generations, adults are active First found in North America near Boston, Massachusetts in April, June, July, and August-September. in 1917, European corn borer, Ostrinia nubilalis (Hübner), now has spread as far west as the Rocky Mountains in both Egg Canada and the United States, and south to the Gulf Coast Eggs are deposited in irregular clusters of about 15 to 20. states. European corn borer is thought to have originated in The eggs are oval, flattened, and creamy white in color, Europe, where it is widespread. It also occurs in northern usually with an iridescent appearance. The eggs darken Africa. The North American European corn borer popula- to a beige or orangish tan color with age. Eggs normally tion is thought to have resulted from multiple introductions are deposited on the underside of leaves, and overlap like from more than one area of Europe. Thus, there are at least shingles on a roof or fish scales. Eggs measure about 1.0 two, and possibly more, strains present. This species occurs mm in length and 0.75 m in width. The developmental infrequently in Florida. threshold for eggs is about 15°C. Eggs hatch in four to nine days. Life Cycle and Description The number of generations varies from one to four, with only one generation occurring in northern New England and Minnesota and in northern areas of Canada, whereas three to four generations occur in Virginia and other southern locations.
[Show full text]
Common Birds of the Prescott Area Nuthatch.Cdr
Birds are listed by their typical habitats. Coniferous Forest Riparian (Creekside) Woodland (Some species may be found in more Sharp-shinned Hawk (w) Anna's Hummingbird (s) than one habitat.) Cooper's Hawk Black-chinned Hummingbird (s) (w) = winter (s) = summer Broad-tailed Hummingbird (s) Rufous Hummingbird (s) Acorn Woodpecker Black Phoebe Pinyon/Juniper/Oak Woodland Red-naped Sapsucker (w) Plumbeous Vireo (s) and Chaparral Hairy Woodpecker Warbling Vireo (s) Gambel's Quail . Western Wood-Pewee (s) House Wren (s) Ash-throated Flycatcher (s) Cordilleran Flycatcher (s) Lucy's Warbler (s) Western Scrub-Jay Hutton's Vireo Yellow Warbler (s) Bridled Titmouse Steller's Jay Summer Tanager (s) Juniper Titmouse . Mountain Chickadee Song Sparrow (w) Bushtit White-breasted Nuthatch Lincoln's Sparrow (w) Bewick's Wren . Pygmy Nuthatch Blue Grosbeak (s) Ruby-crowned Kinglet (w) Brown Creeper Brown-headed Cowbird (s) Blue-gray Gnatcatcher (s) Western Bluebird Bullock's Oriole (s) Crissal Thrasher Hermit Thrush Lesser Goldfinch Phainopepla (s) Yellow-rumped Warbler (w) Lake and Marsh Virginia's Warbler (s) Grace's Warbler (s) Black-throated Gray Warbler (s) Red-faced Warbler (s) Pied-billed Grebe Spotted Towhee Painted Redstart (s) Eared Grebe (w) Canyon Towhee Hepatic Tanager (s) Double-crested Cormorant Rufous-crowned Sparrow Western Tanager (s) Great Blue Heron White-crowned Sparrow (w) Chipping Sparrow Gadwall (w) Black-headed Grosbeak (s) Dark-eyed Junco (w) American Wigeon (w) Scott’s Oriole (s) Pine Siskin Mallard Lake and Marsh (cont.) Varied or Other Habitats Cinnamon Teal (s) Turkey Vulture (s) Common Birds Northern Shoveler (w) Red-tailed Hawk Northern Pintail (w) Rock Pigeon of the Green-winged Teal (w) Eurasian Collared-Dove Prescott Canvasback (w) Mourning Dove Ring-necked Duck (w) Greater Roadrunner Area Lesser Scaup (w) Ladder-backed Woodpecker Bufflehead (w) Northern Flicker Common Merganser (w) Cassin's Kingbird (s) Ruddy Duck (w) Common Raven American Coot Violet-green Swallow (s) .
[Show full text]
American Redstarts
San Antonio Audubon Society May/June 2021 Newsletter American Redstarts By Mike Scully At the time of this writing (early April), the glorious annual spring migration of songbirds through our area is picking up. Every spring I keep a special eye out for one of my favorite migrants, the American Redstart (Setophaga ruticilla). These beautiful warblers flutter actively through the foliage, tail spread, wings drooped, older males clad in black and orange, females and second year males in shades of gray, olive green and yellow. For years, the American Redstart was the only species remaining in the genus Setophaga, until a comprehensive genetic analysis of the Family Parulidae resulted in this genus being grouped with more than 32 species formerly placed in the genus Dendroica and Wilsonia. The name Setophaga was applied to the whole by virtue of seniority. Though now grouped in a large genus, the American Redstart remains an outlier, possessing proportionately large wings, a long tail, and prominent rictal bristles at the base of the relatively wide flat beak, all adaptations to a flycatching mode of foraging. Relatively heavy thigh musculature and long central front toes are apparently adaptations to springing into the air after flying insects. The foraging strategy of redstarts differs from that of typical flycatchers. Redstarts employ a more warbler-like maneuver, actively moving through the foliage, making typically short sallies after flying insect prey, and opportunistically gleaning insects from twigs and leaves while hovering or perched. The wings are frequently drooped and the colorful tail spread wide in order to flush insect prey.
[Show full text]
Birds of Perry County Contact Us the Tell City Ranger District of the Hoosier National Forest Is Open 8-4:30 Monday Through Friday to Serve Visitors
Birds of Perry County Contact Us The Tell City Ranger District of the Hoosier National Forest is open 8-4:30 Monday through Friday to serve visitors. Tell City Ranger District 248 15th Street Tell City, IN 47586 812-547-7051 Federal relay system for the deaf and hearing impaired: 1-800-877-8339 website: www.fs.usda.gov/hoosier Great Bllue Heron Tufted Titmouse __________________________ vV USDA is an equal opportunity provider and employer. America’s Great Outdoors Last updated 11/2011 Forest Service United States Department of Agriculture The third and fourth columns are the genus and Using the Checklist species of the bird. The fifth column shows the The first column after the bird’s common name is bird’s status in Indiana as of 2009. (Available at http:// evidence of the bird’s breeding status in our area. www.in.gov/dnr/fishwild/files/Birds_Of_Indiana.pdf) CO = Confirmed breeding evidence FC = Federal Candidate FE = Federal Endangered PR = Probable breeding evidence FT = Federal Threatened SC - State Special Concern PO = Possible breeding evidence SE = State Endangered X = Exotic/Introduced OB = Observed, no breeding evidence Bird abundance will vary seasonally, and often from This shows highest breeding evidence value from year-to-year as well. Actual abundance is often dis- published 1985-1990 breeding bird atlas data and tinct from detectability. Some species may be com- draft 2005-2010 atlas data. (Available at http://www. mon but secretive and only rarely seen. Others may pwrc.usgs.gov/bba/) be numerically sparse, yet highly
[Show full text]