Ornithological notes

By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Northern Hepatic-tanager (Piranga hepatica), Highland Hepatic-tanager (Piranga lutea) and...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Blue-black Grosbeak (Cyanocompsa cyanoides). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the two races of Rose-breasted Chat (Granatellus pelzelni). We also try to quantify the extent of any vocal differences...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Black-backed Grosbeak (Pheucticus aureoventris). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the two races of Golden-bellied Grosbeak (Pheucticus chrysogaster). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Golden-crowned Warbler (Basileuterus culicivorus). We also try to quantify the extent of any...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Rufous-capped Warbler (Basileuterus rufifrons). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the different races of Russet-crowned Warbler (Basileuterus coronatus). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the two races of Golden-bellied Warbler (Basileuterus chrysogaster). We also try to quantify the extent of any vocal...

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By Peter Boesman
2 years 4 months ago

In the following we briefly analyze and compare voice of the three races of Two-banded Warbler (Basileuterus bivittatus). We also try to quantify the extent of any vocal...

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