Tag Archives: Birds

by | April 4, 2025 · 6:00 am

Ecoacoustics and birdsong recording

Advancements in technology have facilitated diverse research strategies in ecoacoustics (or acoustic ecology), algorithmic sound recognition, and aesthetic approaches, with significant scientific and technological applications. These developments have opened new avenues for studying the relationship between humans and their environment through sound. Portable ambisonic recorders, capable of capturing sound trajectories in a 360° sphere, have proven valuable for surround sound systems, as they accurately reproduce the acoustic environment’s spatial characteristics. This technology allows for faithful representation of the sound emitter’s unique qualities, movement patterns, and the reverberant properties of the environment. As a result, soundscape research intersects with multiple disciplines, including robotic listening, census strategies, acoustics, and algorithmic classification of fauna. Moreover, soundscape studies have increasingly contributed to environmental conservation efforts by informing strategies to mitigate the impact of human activities on natural ecosystems.

Ambisonic microphones

These technological advancements have facilitated the development of diverse strategies and mechanisms, ranging from traditional audio capture techniques to interactive systems that enable communication between humans and other species through sound. In all cases, soundscape studies provide valuable insights into how human activities impact the environment. This includes analyzing the effects of land and air traffic, power lines that generate electromagnetic fields, and other anthropogenic factors. By interpreting such interactions, soundscape research deepens our understanding of ecological disruptions and contributes to the development of strategies for minimizing human-induced environmental disturbances.

Algorithmic recognition plays a crucial role in identifying and classifying bird vocalizations. In ornithology, specialists undergo extensive training to recognize bird species and their songs based on region or mating season–a process that is time-consuming and requires significant expertise. To streamline this task, applications capable of recognizing and categorizing birdsong have been developed, enhancing efficiency and accuracy. The study of soundscapes has further contributed to refining algorithmic recognition strategies for cataloging wildlife within specific environments. A notable example is the Raven software, developed by Cornell University’s Center for Conservation Bioacoustics, which can analyze audio recordings to identify and classify numerous bird species. This technology has proven invaluable for tracking and documenting avian populations across different regions. As these systems continue to evolve, there is significant potential for further advancements, making automated bioacoustic analysis an increasingly powerful tool in ecological research and conservation.

This according to “Paisaje sonoro: Creatividad interdisciplinaria y tecnologías aplicadas para el registro del canto de las aves” [Soundscape: Interdisciplinary creativity and applied technologies for the recording of birdsong] by Pablo Rubio Vargas and Jorge Rodrigo Sigal Sefchovich (ANTEC: Revista peruana de investigación musical 8/2 [2024] 170–183; RILM Abstracts of Music Literature, 2024-13931).

Click the link below to watch a video titled Empowering bioacoustics research in Southeast Asia, which explains efforts at the Center for Conservation Bioacoustics to create biacoustic networks across the region.

https://www.birds.cornell.edu/ccb/empowering-bioacoustics-research-in-southeast-asia/

Related Bibliolore posts:

https://bibliolore.org/2018/05/21/angelic-bird-musicians/

https://bibliolore.org/2014/11/13/afghan-perceptions-of-birdsong/

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by | March 26, 2024 · 5:57 pm

Courtship dance step sounds of the blue-capped cordon-bleu

While vocalizations have been elucidated in various songbird studies, non-vocal sounds have received less attention. In the blue-capped cordon-bleu (Uraeginthus cyanocephalus), both sexes perform courtship displays that are accompanied by singing and distinct body movements (i.e., dance). A previous study revealed that cordon-bleu courtship bobbing includes multiple rapid steps. This behavior is quite similar to human tap dancing, because it can function simultaneously as a visual and acoustic signal.

In many cases, the acoustic signal value of such steps (along with the high-speed step movements) produce non-vocal sounds that have amplitudes similar to vocal sounds. In this sense, step behavior strongly affects step sound amplitude. Additionally, the dancing step sounds were substantially louder than feet movement sounds in a non-courtship context, and the amplitude range overlapped with that of song notes. These observations support the notion that, in addition to song, cordon-bleus produce acoustic signals with their feet.

Read more in “Songbird tap dancing produces non-vocal sounds” by Nao Ota, Manfred Gahr, and Masayo Soma (Bioacoustics: The international journal of animal sound and its recording 26.2 [2017], 161–168). Find it in RILM Abstracts of Music Literature.

Below is the step-dancing performed by male and female Uraeginthus cyanocephalus (blue-capped cordon-bleu) captured on a research video by the authors.

Related Bibliolore posts:

https://bibliolore.org/2018/05/21/angelic-bird-musicians/
https://bibliolore.org/2014/11/13/afghan-perceptions-of-birdsong/

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by | December 13, 2022 · 6:00 am

Luiz Gonzaga and traditional ecological knowledge

The Brazilian recording star Luiz Gonzaga made a career of singing about the drought-plagued northeastern Brazil countryside, where he is still revered as emblematic of the region.

For individuals who predict the weather based on natural patterns in the northeastern backlands, Gonzaga’s music continues to lend credibility, clarity, and local significance to the practice known as rain prophecy.

For example, his Acauã clearly conveys the meaning of the laughing falcon’s cry for the region’s inhabitants: it augurs and “invites” drought. “In the joy of the rainy season/sing the river frog, the tree frog, the toad/but in the sorrow of drought/you hear only the acauã.” The song ends with Gonzaga mimicking the bird’s call, evoking a sound that arouses powerful emotions in the region’s inhabitants.

When northeastern rain prophets cite Gonzaga’s songs, they add credibility to their own expertise, framing it in a context that most Brazilians can comprehend. Enhanced by his national fame and legendary status, Gonzaga’s voice continues to play a significant role in the maintenance of traditional ecological knowledge.

This according to “Birdsong and a song about a bird: Popular music and the mediation of traditional ecological knowledge in northeastern Brazil” by Michael B. Silvers (Ethnomusicology LIX/3 [fall 2015] 380–97).

Today is Gonzaga’s 110th birthday! Above, Gonzaga performing in the traditional costume of the northeastern rancheiros, in 1957 (Arquivo Nacional, public domain); below, his 1952 recording of Acauã.

BONUS: Gonzaga performs Acauã in a film intended for television broadcast. In his introduction he compares the local significance of the laughing falcon’s call with that of the purple-throated euphonia, which heralds rain.

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by | July 20, 2022 · 6:00 am

Avian music culture

The vocalizations of the pied butcherbird (Cracticus nigrogularis) include calls (e.g., food begging [above], alarms, cat scolding), calls incorporated into songs, and pure songs. The latter category may include melismas, ostinatos, transpositions, inversions, variations, and rhythmic effects such as additive and divisive patterns.

Cultural manifestations include duets, antiphonal and canonic effects, and unisons. They also mimic other birds and unexpected sources such as dogs, cats, humans, and machines.

This according to “Decoding the song of the pied butcherbird: An initial survey” by Hollis Taylor (TRANS: Revista transcultural de música/Transcultural music review XII [July 2008]; RILM Abstracts of Music Literature 2008-12677).

Below, a pied butcherbird duet followed by a solo.

More articles about birds are here.

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by | March 31, 2022 · 6:00 am

Haydn’s parrot

haydn-parrot

The Inventur und Schätzung der Joseph Haydnischen Kunstsachen—the catalogue of the auction of Haydn’s personal collection following his death in 1809—is preserved in the Musiksammlung of the Österreichische Nationalbibliothek.

One of the items listed therein was a living parrot. During the composer’s later years, the parrot enjoyed warm days in its cage in Haydn’s Vienna courtyard, mocking the sparrows on the neighbors’ roofs. It could whistle a full octave, sing the opening of the national anthem, and call out “Come, Papa Haydn, to the beautiful Paperi!”

This according to “Haydn als Sammler” by Otto Erich Deutsch, an article included in Zum Haydn-Jahr 1959 (Österreichische Musikzeitschrift XIV/5–6 [May–June 1959] pp. 188–194; RILM Abstracts of Music Literature, 1959-648).

Today is Haydn’s 290th birthday! Below, perhaps a descendant.

Related article: Mozart’s starling

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by | May 21, 2018 · 6:00 am

Angelic bird musicians

Angelic concerts were an extremely popular motive in late medieval European painting. Music-making, singing, or dancing angels co-created an aura of beauty, happiness, and harmony that artistic tradition associated primarily with the figure of Mary. The nascent tradition was taken up by Gentile da Fabriano (ca. 1370–1427), who created an original vision of the Heavens filled with sweet unearthly music, reigned over by the Mother of God.

The most interesting is Gentile’s first work, painted around 1395 (Berlin, Staatliche Museen, Gemäldegalerie), which depicts Mary with her Child on a throne. There are two lilies, one on each side, and in the background are two trees hiding pink angels who hold musical instruments gleaming with gold light. The bird-like angels in the foliage are a visual reference for the poetic metaphor of birdsong as an earthly manifestation of Heaven’s angelic songs in eternal praise of Mary.

This according to “Bird-like angels making music in Mary’s garden: Gentile da Fabriano’s Madonna and child with saints” by Sławomira Żerańska-Kominek (Music in art XXXVI/1–2 [2012] pp. 177–190).

Above, the painting in question (click to enlarge); below, music by Francesco Landini accompanies a sequence of Fabriano’s paintings, including this one.

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by | October 12, 2017 · 6:00 am

Pykini’s parrot

A lively musical culture existed in the second half of the 14th century at the court of Brabant during the reign of Wenceslas I, Duke of Luxembourg (above, right). This abundant musical activity makes it likely that a member of the court chapel, Nicolas de Picquigny, was Pykini, the composer of the much-admired four-voice virelai Plasanche or tost.

The text of Plasanche or tost mentions that the audience will listen with pleasure to the parrot (le papegay). Although parrots are often mentioned in such texts to evoke springtime, and some scholars have guessed that here it is a punning reference to a Pope, archival sources show that Wenceslas had chosen the parrot as his symbol, having had its image embroidered on numerous furnishings with the coats of arms of Brabant and Luxembourg.

The bird was a very appropriate mascot for this duke and poet, who welcomed poets from so many different linguistic regions to his court and was himself fluent in multiple languages. The virelai’s listeners would have had no doubt about the identity of this particular parrot.

This according to “Pykini’s parrot: Music at the court of Brabant” by Remco Sleiderink, an essay included in Musicology and archival research/Musicologie et recherches en archives/Musicologie en archiefonderzoek (Bruxelles/Brussel: Bibliotheca Regia Belgica, 1994, pp. 358–91).

Below, Plasanche or tost performed by The Early Music Consort of London.

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by | September 14, 2017 · 6:00 am

Mozart’s starling

On 27 May 1784 Mozart purchased a European starling (Sturnus vulgaris, above). The pleasure he expressed at hearing the bird’s song—“Das war schon!”—is all the more understandable when one compares his notation of it with the beginning of the last movement of his Piano Concerto in G major, K.453, which was written around the same time.

Three years later the bird died, and he buried it with much ceremony. Heavily veiled mourners marched in a procession, sang hymns, and listened to a graveside recitation of a poem Mozart had composed for the occasion.

Although many questions remain about starlings’ vocal capacities, a recent study supports a definite link between their mimicry and their lively social interactions, illuminating Mozart’s response to his beloved pet’s death.

This according to “Mozart’s starling” by Meredith J. West and Andrew P. King (American scientist LXXVIII/2 [May–August 1990] pp. 106–114).

Below, the concerto movement sung by Mozart’s starling.

More articles about Mozart are here.

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by | July 17, 2017 · 6:00 am

Drumming cockatoos

 

All human societies have music with a rhythmic beat, typically produced with percussive instruments such as drums. The set of capacities that allows humans to produce and perceive music appears to be deeply rooted in human biology, but an understanding of its evolutionary origins requires cross-taxa comparisons.

Drumming by palm cockatoos (Probosciger aterrimus) shares the key rudiments of human instrumental music, including manufacture of a sound tool, performance in a consistent context, regular beat production, repeated components, and individual styles.

Throughout 131 drumming sequences produced by 18 males, the beats occurred at nonrandom, regular intervals; yet individual males differed significantly in the distribution parameters of their beat patterns, indicating individual drumming styles. Autocorrelation analyses of the longest drumming sequences further showed that they were highly regular and predictable, like human music.

These discoveries provide a rare comparative perspective on the evolution of rhythmicity and instrumental music in our own species, and show that a preference for a regular beat can have other origins before being co-opted into group-based music and dance.

This according to “Tool-assisted rhythmic drumming in palm cockatoos shares key elements of human instrumental music” by Robert Heinsohn, Christina N. Zdenek, et al. (Science advances III/6 [2017]).

Above, a male cockatoo (right) drumming with a stick for a female; below, a video produced by the research team.

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by | February 3, 2015 · 6:00 am

Hermit thrush pitch preferences

HermitThrush

The song of the hermit thrush, a common North American songbird, is renowned for its apparent musicality and has attracted the attention of musicians and ornithologists for more than a century.

Recent research has shown that hermit thrush songs, like much human music, use pitches that are mathematically related by simple integer ratios and follow the harmonic series. These findings add to a small but growing body of research showing that a preference for small-integer ratio intervals is not unique to humans; such findings are particularly relevant to the ongoing nature/nurture debate about whether musical predispositions such as the preference for consonant intervals are biologically or culturally driven.

This according to “Overtone-based pitch selection in hermit thrush song: Unexpected convergence with scale construction in human music” by Emily Doolittle, et al. (Proceedings of the National Academy of Sciences of the United States of America CXI/46 [18 November 2014] pp. 16616–16621).

Below, a hermit thrush video that will fascinate your cats; more recordings, including slowed-down ones, are here.

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