Ortolan Bunting (Emberiza hortulana) Science Article 1 abstract The ortolan bunting Emberiza hortulana is a bird species that has shown a particularly dramatic decline during recent decades within the agricultural areas of Europe. We studied the population density changes and environment associations of the ortolan bunting within agricultural landscapes in southern Finland, from territory to […]
Category: Emberizidae
Recognition of individuals of Ortolan Bunting Emberiza hortulana using image processing procedures
Ortolan Bunting (Emberiza hortulana) Science Article 3 abstract The method of individual recognition of Ortolan bunting Emberiza hortulana songs using simpleimage processing procedures was developed and tested. The method efficiency for the training data set was95% and for independent, testing data set 67%. Besides recognition of individuals, the method enablesselection of song elements, which can […]
Recognition of individuals of Ortolan Bunting Emberiza hortulana using image processing procedures
Ortolan Bunting (Emberiza hortulana) Science Article 3 abstract The method of individual recognition of Ortolan bunting Emberiza hortulana songs using simpleimage processing procedures was developed and tested. The method efficiency for the training data set was95% and for independent, testing data set 67%. Besides recognition of individuals, the method enablesselection of song elements, which can […]
Structure and repertoire variation in ortolan bunting (Emberiza hortulana L.) from isolated Norwegian population
Ortolan Bunting (Emberiza hortulana) Science Article 2 abstract This paper describes song structure and repertoire variation in ortolan buntings (Emberiza hortulana) from an isolated and declining Norwegian population, analysed by using the minimal unit of production approach. Males from the studied population sang strophes similar to both dialects found in geographically closest populations in Sweden. […]
Structure and repertoire variation in ortolan bunting (Emberiza hortulana L.) from isolated Norwegian population
Ortolan Bunting (Emberiza hortulana) Science Article 2 abstract This paper describes song structure and repertoire variation in ortolan buntings (Emberiza hortulana) from an isolated and declining Norwegian population, analysed by using the minimal unit of production approach. Males from the studied population sang strophes similar to both dialects found in geographically closest populations in Sweden. […]
REPRODUCTIVE SUCCESS OF GRASSLAND SPARROWS ON A RECLAIMED SURFACE MINE IN WEST VIRGINIA
Grassland Sparrow (Ammodramus humeralis) Science Article 2 abstract There productive successo f GrasshopperS parrows (Ammodramusa vannarum),SavannahS parrows( Passerculussa ndwichensisV),e sper Sparrows( Pooecetegsr amineus),and Field Sparrows (Spizella pusilla) breeding on a reclaimed surface mine in northern WestVirginia was studied from 1978 through 1980. Only Vesper Sparrows showed significant(P (0.05) annual differences in clutch size. Predation was […]
BEHAVIOR OF THE GRASSLAND SPARROW AND TWO SPECIES OF SEED-FINCHES
Grassland Sparrow (Ammodramus humeralis) Science Article 1 abstract The behavior of many of the predominantly granivorous neotropical bird species cOnventionally grouped under the familial heading Fringillidae in field guides is poorly known. Documenting it may help promote a better understanding of the phylogeny and Systematics of these birds and clarify the evolution and adaptive significance […]
THE SONG OF THE FOX SPARROW
Fox Sparrow (Passerella iliaca) Science Article 2 abstract The study of the song of the fox sparrow is a highly tantalizing pursuit owing to the bird’s brief stay, provoking habits of silence and reluctance to sing in full voice. THEODORE CLARKE SMITH, The Ohio Naturalist Vol. 3, No. 6 Download article download full text (pdf)
GEOGRAPHIC VARIATION IN ONTOGENY OF THE FOX SPARROW
Fox Sparrow (Passerella iliaca) Science Article 3 abstract Ontogeny of two morphologically differentiated populations of Fox Sparrows (PassereNail iaca) was compared to reveal the developmental bases of adult morphologicaldifferences. Growth of tarsus, wing, bill, and tail length relative to body mass was compared between the two populations to determine if geographic variation in adults results […]
Natural death of a Fox Sparrow
Fox Sparrow (Passerella iliaca) Science Article 4 abstract In ‘The Condor,’ September 1924, Laurence M. Huey describes the natural death of an Audubon’s Warbler (Dendroica auduboni) under the title ‘The Natural End of a Bird’s Life.’ Huey describes the bird as ‘ascending a vertical rose stem in a peculiar spiral manner’ and otherwise conducting itself […]