Circular /

Description based on: No. 3 (Aug. 28, 1895); title from caption.

Die vergleichende osteologie der Columbiformes unter besonderer berücksichtigung von Didunculus strigirostris. Ein beitrag zur stammgeschichte der tauben.

Jena Zool. Jahrb. Abth. System. Bd. 20. Heft 3. S. 167-352. 1904.

The pigeoneer. Students manual for all arms,

Mode of access: Internet.

Pigeon keeping for beginners.

Mode of access: Internet.

Cleveland convention souvenir book.

Mode of access: Internet.

Birds and the war /

Mode of access: Internet.

The International pigeon standard.

Title on spine: The Pigeon standard.

The national standard squab book,

Mode of access: Internet.

Preventive veterinary medicine.

Mode of access: Internet.

Pigeon City,

Mode of access: Internet.

La colombe : messagère plus rapide que l'éclair, plus prompte que la nue /

Title on added t.p. in Arabic: Kitāb Musābaqat al-barq wa-al-ghamām fī suʻāt al-ḥamām.

The naturalist's library.

Engraved half-title in each volume.

The passenger pigeon,

Introduction.--My boyhood among the pigeons.--The passenger pigeon, from "American ornithology", by A. Wilson.--The passenger pigeon, from "Ornithological biography", by J.J. Audubon.--As James Fenimore Cooper saw it.--The wild pigeon of North America by Chief Pokagon, in "The Chautauquan"--The passenger pigeon, from "Life histories of North American birds", by C. Bendire.--Netting the pigeons, by W. Brewster, in "The Auk".--Efforts to check the slaughter, by Prof. H.B. Roney.--The pigeon butcher's defense, by E.F. Martin, in "American field".--Notes of a vanished industry.--Recollections of "old timers".--The last of the pigeons.--What became of the wild pigeon? By S. Cook, in "Forest and stream".--A novel theory of extinction, by C.H. Ames and R. Ridgway.--News from John Burroughs.--The pigeon in Manitoba, by G.E. Atkinson.--The passenger pigeon in confinement, by R. Deane, in "The Auk".--Nesting habits of the passenger pigeon, by Dr. M. Gibbs, in "The Oölogist".--Miscellaneous notes.

Asymmetrical processing of olfactory input in the piriform cortex mediates "activation" of the avian navigation circuitry

The role of odors in the long-distance navigation of birds has elicited intense debate for more than half a century. Failure to resolve many of the issues fueling this debate is due at least in part to the absence of controls for a variety of non-specific effects that odors have on the navigational process. The present experiments were carried out to investigate whether the olfactory inputs are involved only in “activation” of neuronal circuitry involved in navigation or are also playing a role in providing directional information. Experienced adult pigeons were exposed to controlled olfactory stimuli during different segments of the journey (release site vs. displacement + release site). Protein levels of IEGs (immediate early genes used to mark synaptic activity) were analyzed in areas within the olfactory/navigation avian circuitry. The results indicate that 1) exposure to natural odors at the release site (and not before) elicit greater activation across brain regions than exposure to filtered air, artificial odors, and natural odors along the entire outward journey (from home to the release site, inclusive); 2) activation of the piriform cortex in terms of odor discrimination is lateralized; 3) activation of the navigation circuitry is achieved by means of lateralized activation of piriform cortex neurons. Altogether, the findings provide the first direct evidence that activation of the avian navigation circuitry is mediated by asymmetrical processing of olfactory input occurring in the right piriform cortex.

Natural Bagaza virus infection in game birds in southern Spain

In late summer 2010 a mosquito born flavivirus not previously reported in Europe called Bagaza virus (BAGV) caused high mortality in red-legged partridges (Alectoris rufa) and ring-necked pheasants (Phasianus colchicus). We studied clinical findings, lesions and viral antigen distribution in naturally BAGV infected game birds in order to understand the apparently higher impact on red-legged partridges. The disease induced neurologic signs in the two galliform species and, to a lesser extent, in common wood pigeons (Columba palumbus). In red-legged partridges infection by BAGV caused severe haemosiderosis in the liver and spleen that was absent in pheasants and less evident in common wood pigeons. Also, BAGV antigen was present in vascular endothelium in multiple organs in red-legged partridges, and in the spleen in common wood pigeons, while in ring-necked pheasants it was only detected in neurons and glial cells in the brain. These findings indicate tropism of BAGV for endothelial cells and a severe haemolytic process in red-legged partridges in addition to the central nervous lesions that were found in all three species.