| phylogenetic analysis of avian poxviruses among free-ranging birds of virginia. | polymerase chain reaction was used to amplify a portion of the avian poxvirus core 4b gene of infected free-ranging birds that presented at the wildlife center of virginia during the 2003 and early 2004 years. the species of bird infected were a great blue heron (ardea herodias), two american crows (corvus brachyrhyncos), two american robins (turdus migratorius), two mourning doves (zenaida macroura), a red-tailed hawk (buteo jamaicensis), a blue-gray gnatcatcher (polioptila caerulea), a norther ... | 2005 | 16405007 |
| songbird abundance and parasitism differ between urban and rural shrublands. | many studies have examined differences in avian community composition between urban and rural habitats, but few, if any, have looked at nesting success of urban shrubland birds in a replicated fashion while controlling for habitat. we tested factors affecting nest survival, parasitism by the brown-headed cowbird (molothrus ater), and species abundance in shrubland habitat in rural and urban landscapes. we found no support for our hypothesis that nest survival was lower in urban landscapes, but s ... | 2006 | 16705988 |
| quill mites of the genus syringophilopsis kethley, 1970 (acari: syringophilidae) from north american birds. | seven mite species belonging to the genus syringophilopsis kethley, 1970 (acari: prostigmata: cheyletoidea) are recorded from 10 passeriform host species from the usa. three new species are described and illustrated: syringophilopsis polioptilus sp. n. from polioptila caerulea (linnaeus) (polioptilidae); s. empidonax sp. n. from empidonax hamrnmondii (vesey) and empidonax wrightii baird (tyrannidae); and s. sialiae sp. n. from sialia mexicana swainson (turdidae). in addition, records of new host ... | 2008 | 19175207 |
| bird-window collisions in the summer breeding season. | birds that reside in urban settings face numerous human-related threats to survival, including mortality from bird-window collisions (bwcs). our current understanding of this issue has largely been driven by data collected during spring and fall migration, and patterns of collision mortality during the summer breeding season remain relatively unexplored. we assessed bwcs during four breeding seasons (2009-2012) at a site in northwestern illinois, usa, by comparing the abundance, richness, migrat ... | 2014 | 25024923 |