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My eBird 10th Anniversary

10,000 Birds

According to eBird , I have been an eBirder since December 23, 2009, so today is my 10th eBird anniversary. During the decade, I submitted 1,219 checklists and observed 555 bird species, all in the U.S. In other words, eBird is effectively a complete history of my birding experiences. Texas and Florida round out the Top 5.

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A Guide to Some Possible Bird Species Splits in Costa Rica

10,000 Birds

These and several other species might end up being armchair ticks if and when we take a closer look at their evolutionary history. Taxa that could end up being split into one species occurring north of the Isthmus of Tehuantepec, and one south of the isthmus. (2). Two subspecies of the same species that differ within Costa Rica. (4).

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American Birding Association Field Guide to Birds of Ontario: A Field Guide Review

10,000 Birds

Ontario is larger than Texas, more than 1 million square kilometers of forests, cities, wetlands, tundra, rivers and lakes. The official Ontario bird checklist, produced by Ontario Field Ornithologists , June 2022 listed 506 bird species**, putting it in the top tier of U.S. state and Canadian provinces. state and Canadian provinces.

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Birds of Belize & Birds of Costa Rica: A Field Guide Review Doubleheader

10,000 Birds

An associated issue is that the Belize and Costa Rica guides share many of the same descriptions of species, written by Howell. Similarly, descriptions of species repeated across volumes do not lose their accuracy with each publication. Other species are splits and lumped and have had their names changed. Why are these issues?

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Dragonflies and Damselflies of the East: A Field Guide Review

10,000 Birds

Press in 2009), active participation in the Dragonfly Society of the Americas and leading dragonfly trips to Costa Rica and, hopefully this summer, Panama. I know from experience how accessible Dennis is, last year he helped me identify a damselfly I photographed in Costa Rica (Argia anceps, no common name). Yes, 675 photographs.

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Bird Song and Parallel Evolution: learning from our feathered friends

10,000 Birds

So defined, bird songs are the sounds, often but not always loud and musical, that (mostly) male birds make as part of that species’ mating system. The bottom two are the songs of individuals raised in isolation, representing only their “built-in&# template unaffected by the experience of hearing normal adults.

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