@article {Rubolini2007Longterm,
	title = {Long-term trends in first arrival and first egg laying dates of some migrant and resident bird species in northern Italy},
	journal = {International Journal of Biometeorology},
	volume = {51},
	number = {6},
	year = {2007},
	month = {August},
	pages = {553{\textendash}563},
	publisher = {Springer},
	keywords = {arrival, birds, europe, italy, migration, phenology},
	issn = {0020-7128},
	doi = {10.1007/s00484-007-0094-7},
	url = {http://dx.doi.org/10.1007/s00484-007-0094-7},
	author = {Rubolini and Diego and Ambrosini and Roberto and Caffi and Mario and Brichetti and Pierandrea and Armiraglio and Stefano and Saino and Nicola}
}
@article {GeberzahnFemales,
	title = {Females alter their song when challenged in a sex-role reversed bird species},
	journal = {Behavioral Ecology and Sociobiology},
	year = {Submitted},
	abstract = {Abstract\&nbsp;\&nbsp;Birdsong serves to attract mates and to deter territorial rivals. Even though song is not restricted to males, this dual function has almost exclusively been demonstrated for male song. To test the generality of hypotheses on birdsong, we investigated female song in the sex-role reversed, classically polyandrous African black coucal (Centropus grillii) in the context of female{\textendash}female competition. We compared spontaneously vocalizing females with females vocally responding to a playback simulating a conspecific intruder. Females changed vocal parameters in response to playbacks: They lowered the pitch of their vocalizations and enhanced the duration of song elements when being challenged. Also, the composition of the vocalizations was altered. There was no significant correlation between pitch and body size parameters in spontaneous song, but there was for response songs, with larger females having a lower pitch. These changes in vocal properties suggest that the vocalizations are important for mutual assessment of competitive abilities in females. Our findings confirm the general role of intrasexual competition in vocal communication of birds.},
	keywords = {bioacoustics, birds, communication, song},
	doi = {10.1007/s00265-009-0836-0},
	url = {http://dx.doi.org/10.1007/s00265-009-0836-0},
	author = {Geberzahn, Nicole and Goymann, Wolfgang and Muck, Christina and ten Cate, Carel}
}
@article {Swiston2009Comparison,
	title = {Comparison of manual and automated methods for identifying target sounds in audio recordings of Pileated, Pale-billed, and putative Ivory-billed woodpeckers},
	journal = {Journal of Field Ornithology},
	volume = {80},
	number = {1},
	year = {2009},
	month = {March},
	pages = {42{\textendash}50},
	publisher = {Blackwell Publishing},
	keywords = {asr, bioacoustics, biodiversity, birds, monitoring},
	issn = {02738570},
	doi = {10.1111/j.1557-9263.2009.00204.x},
	url = {http://dx.doi.org/10.1111/j.1557-9263.2009.00204.x},
	author = {Swiston, Kyle A. and Mennill, Daniel J.}
}
@article {Bardeli2009Detecting,
	title = {Detecting bird sounds in a complex acoustic environment and application to bioacoustic monitoring},
	journal = {Pattern Recognition Letters},
	year = {2009},
	month = {September},
	abstract = {Trends in bird population sizes are an important indicator in nature conservation but measuring such sizes is a very difficult, labour intensive process. Enormous progress in audio signal processing and pattern recognition in recent years makes it possible to incorporate automated methods into the detection of bird vocalisations. These methods can be employed to support the census of population sizes. We report about a study testing the feasibility of bird monitoring supported by automatic bird song detection. In particular, we describe novel algorithms for the detection of the vocalisations of two endangered bird species and show how these can be used in automatic habitat mapping. These methods are based on detecting temporal patterns in a given frequency band typical for the species. Special effort is put into the suppression of the noise present in real-world audio scenes. Our results show that even in real-world recording conditions high recognition rates with a tolerable rate of false positive detections are possible.},
	keywords = {asr, bioacoustics, birds, monitoring, neuroinofrmatics},
	issn = {01678655},
	doi = {10.1016/j.patrec.2009.09.014},
	url = {http://dx.doi.org/10.1016/j.patrec.2009.09.014},
	author = {Bardeli, R. and Wolff, D. and Kurth, F. and Koch, M. and Tauchert, K. H. and Frommolt, K. H.}
}
@article {Kirschel2009Character,
	title = {Character displacement of song and morphology in African tinkerbirds},
	journal = {Proceedings of the National Academy of Sciences},
	volume = {106},
	number = {20},
	year = {2009},
	month = {May},
	pages = {8256{\textendash}8261},
	abstract = {10.1073/pnas.0810124106 Divergence in acoustic signals between populations of animals can lead to species recognition failure, reproductive isolation, and speciation. Character displacement may facilitate coexistence of species in natural communities, yet evidence for character displacement in acoustic signals is scant. Here, we find evidence of character displacement in song as well as body size and bill size of 2 related African tinkerbirds. Playback experiments indicate that related species{\textquoteright} songs are perceived differently in sympatry than in allopatry. We suggest character displacement occurs in phenotypic traits facilitating species recognition, which has important implications for understanding the processes that lead to speciation and diversification. Because many of the sites where the 2 species coexist are areas where pristine rainforest has been degraded, results also suggest that anthropogenic pressures resulting from deforestation may be a contributing cause of character displacement in these species.},
	keywords = {bioacoustics, birds, character-displacement, evolution, songs},
	doi = {10.1073/pnas.0810124106},
	url = {http://dx.doi.org/10.1073/pnas.0810124106},
	author = {Kirschel, Alexander N. G. and Blumstein, Daniel T. and Smith, Thomas B.}
}
@article {SalewskiSpring,
	title = {Spring passerine migrants stopping over in the Sahara are not fall-outs},
	journal = {Journal of Ornithology},
	year = {Submitted},
	abstract = {Abstract\&nbsp;\&nbsp;The strategy of migrants crossing the Sahara desert has been the subject of debate, but recent evidence from radar studies has confirmed that most passerines use an intermittent migration strategy. The latter has also been suggested from previous studies in oases during autumn migration. It was found that migrants with relatively high fuel loads rest in the desert during daytime and continue migration during the following night, whereas lean migrants stopover in oases for several days to refuel. However, data from the Sahara are scarce for spring migration. We captured passerine migrants near B{\^\i}r Amr{\^a}ne (22{\textdegree}47'N, 8{\textdegree}43'W) in the plain desert of Mauritania for 3\&nbsp;weeks during spring migration in 2004. We estimated flight ranges of 85 passerines stopping over in the desert to test whether they carried sufficient fuel loads to accomplish migration across the Sahara successfully. High fat loads of the majority of birds indicated that they were neither {\textquotedblright} fall-outs{\textquotedblright} nor too weak to accomplish migration successfully. The flight range estimates, based on mean flight speeds derived from radar measurements (59\&nbsp;km/h), revealed that 85\% of all birds were able to reach the northern fringe of the desert with an intermittent migration strategy. Furthermore, birds stopping over in an oasis (Ouad{\^a}ne, 370\&nbsp;km to the southwest of B{\^\i}r Amr{\^a}ne) did not carry consistently lower fuel loads compared to the migrants captured in the desert.},
	keywords = {autumn\_migration, birds, fuel\_loads, mauritania, migrants, migration, migration\_strategy, oases, passerines, radar\_measurements, sahara\_desert, southwest, trans-saharan},
	doi = {10.1007/s10336-009-0464-5},
	url = {http://dx.doi.org/10.1007/s10336-009-0464-5},
	author = {Salewski, Volker and Schmaljohann, Heiko and Liechti, Felix}
}
@article {WilzeckLearning,
	title = {Learning of magnetic compass directions in pigeons},
	journal = {Animal Cognition},
	year = {Submitted},
	abstract = {Abstract\&nbsp;\&nbsp;A proof of magnetic compass learning by pigeons under laboratory conditions has been attempted for decades, but all experiments have failed so far. The aim of the present study was to test whether pigeons can learn magnetic compass directions in an operant chamber if magnetic cues are presented as true spatial cues. Experimental sessions were carried out in the local geomagnetic field and in magnetic fields with matched total intensity and inclination, but different directions generated with Helmholtz-coils. Birds demonstrated successful learning with a performance level comparable to that in learning studies with magnetic anomalies. In addition, we compared the data from magnetic learning in the laboratory with performance from homing experiments in the field. The birds that were more successful in the learning experiment had vanishing bearings farther away from the home direction than the group mean at unfamiliar, but not at familiar sites. This might suggest that better learners explore unknown locations in a different way. Our findings represent the first evidence for operant magnetic compass learning in pigeons and also provide a link between behavioural data from the field and the laboratory.},
	keywords = {birds, migration, navigation, orientation, pigeons},
	doi = {10.1007/s10071-009-0294-0},
	url = {http://dx.doi.org/10.1007/s10071-009-0294-0},
	author = {Wilzeck, Christiane and Wiltschko, Wolfgang and G{\"u}nt{\"u}rk{\"u}n, Onur and Buschmann, Jens-Uwe and Wiltschko, Roswitha and Prior, Helmut}
}
@article {Holland2009Testing,
	title = {Testing the role of sensory systems in the migratory heading of a songbird},
	journal = {J Exp Biol},
	volume = {212},
	number = {24},
	year = {2009},
	month = {December},
	pages = {4065{\textendash}4071},
	abstract = {The identification of the sensory cues and mechanisms by which migratory birds are able to reach the same breeding and wintering grounds year after year has eluded biologists despite more than 50 years of intensive study. While a number of environmental cues have been proposed to play a role in the navigation of birds, arguments still persist about which cues are essential for the experience based navigation shown by adult migrants. To date, few studies have tested the sensory basis of navigational cues used during actual migration in the wild: mainly laboratory based studies or homing during the non-migratory season have been used to investigate this behaviour. Here we tested the role of olfactory and magnetic cues in the migration of the catbird (Dumetella carolinensis) by radio tracking the migration of birds with sensory manipulations during their actual migratory flights. Our data suggest that adult birds treated with zinc sulphate to produce anosmia were unable to show the same orientation as control adults, and instead reverted to a direction similar to that shown by juveniles making their first migration. The magnetic manipulation had no effect on the orientation of either adults or juveniles. These results allow us to propose that the olfactory sense may play a role in experience based migration in adult catbirds. While the olfactory sense has been shown to play a role in the homing of pigeons and other birds, this is the first time it has been implicated in migratory orientation. 10.1242/jeb.034504},
	keywords = {aves, birds, mechanims, migration, olfaction, orientation, zug},
	doi = {10.1242/jeb.034504},
	url = {http://dx.doi.org/10.1242/jeb.034504},
	author = {Holland, R. A. and Thorup, K. and Gagliardo, A. and Bisson, I. A. and Knecht, E. and Mizrahi, D. and Wikelski, M.}
}
@article {Selin2007Wavelets,
	title = {Wavelets in Recognition of Bird Sounds},
	journal = {EURASIP Journal on Advances in Signal Processing},
	volume = {2007},
	year = {2007},
	pages = {1{\textendash}10},
	keywords = {asr, bioacoustics, birds, songs},
	issn = {1687-6172},
	doi = {10.1155/2007/51806},
	url = {http://dx.doi.org/10.1155/2007/51806},
	author = {Selin, Arja and Turunen, Jari and Tanttu, Juha T.}
}
@article {Pohl2009Effects,
	title = {Effects of signal features and environmental noise on signal detection in the great tit, Parus major},
	journal = {Animal Behaviour},
	volume = {78},
	number = {6},
	year = {2009},
	month = {December},
	pages = {1293{\textendash}1300},
	keywords = {aves, birds, detection, hearing, noise, signal-noise},
	issn = {00033472},
	doi = {10.1016/j.anbehav.2009.09.005},
	url = {http://dx.doi.org/10.1016/j.anbehav.2009.09.005},
	author = {Pohl, Nina U. and Slabbekoorn, Hans and Klump, Georg M. and Langemann, Ulrike}
}
@article {Adi2010Acoustic,
	title = {Acoustic censusing using automatic vocalization classification and identity recognition},
	journal = {The Journal of the Acoustical Society of America},
	volume = {127},
	number = {2},
	year = {2010},
	pages = {874+},
	keywords = {asr, bioacoustics, birds, monitoring},
	issn = {00014966},
	doi = {10.1121/1.3273887},
	url = {http://dx.doi.org/10.1121/1.3273887},
	author = {Adi, Kuntoro and Johnson, Michael T. and Osiejuk, Tomasz S.}
}
@article {Boelman2007MULTITROPHIC,
	title = {MULTI-TROPHIC INVASION RESISTANCE IN HAWAII: BIOACOUSTICS, FIELD SURVEYS, AND AIRBORNE REMOTE SENSING},
	journal = {Ecological Applications},
	volume = {17},
	number = {8},
	year = {2007},
	month = {December},
	pages = {2137{\textendash}2144},
	keywords = {bioacoustics, birds, invasive-species, rs},
	issn = {1051-0761},
	doi = {10.1890/07-0004.1},
	url = {http://dx.doi.org/10.1890/07-0004.1},
	author = {Boelman, Natalie T. and Asner, Gregory P. and Hart, Patrick J. and Martin, Roberta E.}
}
@article {Haselmayer2000COMPARISON,
	title = {A COMPARISON OF POINT COUNTS AND SOUND RECORDING AS BIRD SURVEY METHODS IN AMAZONIAN SOUTHEAST PERU},
	journal = {The Condor},
	volume = {102},
	number = {4},
	year = {2000},
	pages = {887+},
	keywords = {america, bioacoustics, birds, monitoring, ornithology, south},
	issn = {0010-5422},
	doi = {10.1650/0010-5422(2000)102\%5B0887:ACOPCA\%5D2.0.CO;2},
	url = {http://dx.doi.org/10.1650/0010-5422(2000)102\%5B0887:ACOPCA\%5D2.0.CO;2},
	author = {Haselmayer, John and Quinn, James S.}
}
@article {Hutto2009Humans,
	title = {Humans versus autonomous recording units: a comparison of point-count results},
	journal = {Journal of Field Ornithology},
	volume = {80},
	number = {4},
	year = {2009},
	month = {December},
	pages = {387{\textendash}398},
	publisher = {Blackwell Publishing},
	keywords = {amibio, arus, birds, censussing, monitoring},
	issn = {02738570},
	doi = {10.1111/j.1557-9263.2009.00245.x},
	url = {http://dx.doi.org/10.1111/j.1557-9263.2009.00245.x},
	author = {Hutto, Richard L. and Stutzman, Ryan J.}
}
@article {Broekhuizen2003Simulating,
	title = {Simulating the distribution of southern Buller{\textquoteright}s albatross using an individual-based population model},
	journal = {Journal of Applied Ecology},
	volume = {40},
	number = {4},
	year = {2003},
	month = {August},
	pages = {678{\textendash}691},
	keywords = {albatross, birds, gis, migration, seabirds, simulation, tracking},
	issn = {0021-8901},
	doi = {10.1046/j.1365-2664.2003.00834.x},
	url = {http://dx.doi.org/10.1046/j.1365-2664.2003.00834.x},
	author = {Broekhuizen, N. and Stahl, J. C. and Sagar, P. M.}
}
@article {LaSorte2010Avian,
	title = {Avian distributions under climate change: towards improved projections},
	journal = {J Exp Biol},
	volume = {213},
	number = {6},
	year = {2010},
	month = {March},
	pages = {862{\textendash}869},
	abstract = {Birds are responding to recent climate change in a variety of ways including shifting their geographic ranges to cooler climates. There is evidence that northern-temperate birds have shifted their breeding and non-breeding ranges to higher latitudes, and tropical birds have shifted their breeding ranges to higher altitudes. There is further evidence these shifts have affected migration strategies and the composition and structure of communities. Projections based on correlative distributional models suggest many birds will experience substantial pressures under climate change, resulting in range contraction and shifts. Inherent limitations of correlative models, however, make it difficult to develop reliable projections and detailed inference. Incorporating a mechanistic perspective into species distribution models enriches the quality of model inferences but also severely narrows the taxonomic and geographic relevance. Mechanistic distributional models have seen increased applications, but so far primarily in ectotherms. We argue that further development of similar models in birds would complement existing empirical knowledge and theoretical projections. The considerable data already available on birds offer an exciting basis. In particular, information compiled on flight performance and thermal associations across life history stages could be linked to distributional limits and dispersal abilities, which could be used to develop more robust and detailed projections. Yet, only a broadening of taxonomic scale, specifically to appropriately represented tropical diversity, will allow for truly general inference and require the continued use of correlative approaches that may take on increasingly mechanistic components. The trade-off between detail and scale is likely to characterize the future of global change biodiversity research, and birds may be an excellent group to improve, integrate and geographically extend current approaches. 10.1242/jeb.038356},
	keywords = {birds, climate-change, migration, migratory-birds},
	doi = {10.1242/jeb.038356},
	url = {http://dx.doi.org/10.1242/jeb.038356},
	author = {La Sorte, F. A. and Jetz, W.}
}
@article {Barron2010Metaanalysis,
	title = {Meta-analysis of transmitter effects on avian behaviour and ecology},
	journal = {Methods in Ecology and Evolution},
	volume = {1},
	number = {2},
	year = {2010},
	month = {February},
	pages = {180{\textendash}187},
	address = {Program in Ecology, Evolution, and Conservation Biology, University of Illinois, 606 E. Healey Street, Champaign, IL 61821, USA},
	abstract = {1. Researchers often attach transmitters and other devices to free-living birds without a clear understanding of potential deleterious consequences to their study organisms, and thus to their data. Studies investigating this topic have generally been limited to a single species or type of device. 2. To achieve a broader understanding we used a meta-analysis of 84 studies to ask: (1) Do devices have an overall effect on birds? (2) Which aspects of avian behaviour and ecology are affected? (3) What attributes of birds influence transmitter effects? (4) What attributes of devices influence their effects? (5) Are effects partially a consequence of capture and restraint? 3. We found a significant negative effect of devices on birds, both overall and for 8 of the 12 specific aspects analysed. The most substantial effects were that birds with devices had markedly increased energy expenditure and were much less likely to nest. 4. Effects were independent of attributes of the birds (sex, age, primary method of locomotion and body mass). We also found no evidence that proportionally heavier devices had greater effects, although researchers generally avoided using heavy devices. Breast-mounted and harness attachments increased device-induced behaviours such as preening, however, and the risk of device-induced mortality differed between attachment methods. 5. Other than foraging behaviours, no effects were a consequence of capture or restraint. 6.Synthesis and applications. We provide the first comprehensive evidence that transmitters and other devices negatively affect birds and may bias resulting data. Researchers should balance the benefits of using these techniques against potential costs to the birds and reliability of the data obtained.},
	keywords = {birds, conservation, methods, migration, sensors, transmitters},
	issn = {2041210X},
	doi = {10.1111/j.2041-210X.2010.00013.x},
	url = {http://dx.doi.org/10.1111/j.2041-210X.2010.00013.x},
	author = {Barron, Douglas G. and Brawn, Jeffrey D. and Weatherhead, Patrick J.}
}
@article {Hedenstrom2010Extreme,
	title = {Extreme Endurance Migration: What Is the Limit to Non-Stop Flight?},
	journal = {PLoS Biol},
	volume = {8},
	number = {5},
	year = {2010},
	month = {May},
	pages = {e1000362+},
	publisher = {Public Library of Science},
	keywords = {birds, longdistance, migration},
	doi = {10.1371/journal.pbio.1000362},
	url = {http://dx.doi.org/10.1371/journal.pbio.1000362},
	author = {Hedenstr{\"o}m, Anders}
}
@article {Planque2008Spectral,
	title = {Spectral Overlap in Songs and Temporal Avoidance in a Peruvian Bird Assemblage},
	journal = {Ethology},
	volume = {114},
	number = {3},
	year = {2008},
	month = {March},
	pages = {262{\textendash}271},
	publisher = {Blackwell Publishing},
	keywords = {bioacoustics, birds, communities, ecology, neotropics},
	issn = {0179-1613},
	doi = {10.1111/j.1439-0310.2007.01461.x},
	url = {http://dx.doi.org/10.1111/j.1439-0310.2007.01461.x},
	author = {Planqu{\'e}, Robert and Slabbekoorn, Hans}
}
@article {Henry2010Habitatrelated,
	title = {Habitat-related differences in the frequency selectivity of auditory filters in songbirds},
	journal = {Functional Ecology},
	volume = {24},
	number = {3},
	year = {2010},
	month = {June},
	pages = {614{\textendash}624},
	publisher = {Blackwell Publishing},
	keywords = {aves, bioacoustics, birds, ecology, sensory-ecology},
	issn = {02698463},
	doi = {10.1111/j.1365-2435.2009.01674.x},
	url = {http://dx.doi.org/10.1111/j.1365-2435.2009.01674.x},
	author = {Henry, Kenneth S. and Lucas, Jeffrey R.}
}
@article {Morton1975Ecological,
	title = {Ecological Sources of Selection on Avian Sounds},
	journal = {The American Naturalist},
	volume = {109},
	number = {965},
	year = {1975},
	month = {January},
	pages = {17{\textendash}null},
	publisher = {The University of Chicago Press},
	abstract = {doi: 10.1086/282971},
	keywords = {bioacoustics, birds, ecology, evolution},
	doi = {10.1086/282971},
	url = {http://dx.doi.org/10.1086/282971},
	author = {Morton, Eugene S.}
}
