Pablo
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Viewing 9 posts - 1 through 9 (of 9 total)
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After all that dancing and display to get the females attention and favoring him for mating he leaves and does not participate on rising the chicks? Well at least she incubate her own eggs and do not also leave them like the cowbirds where neither parent are involved in rising the chicks.
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I was surprised to hear from the video that in hummingbirds there is no bend in the wing during the upstroke but that the wing flips over, so the bird also generates lift on the upstroke. Looking at other birds fly I always saw this wing bend and assume because hummingbirds are so small and fast wing-beaters I could not see the wings bend.
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I have seen almost 30 species of Hummingbirds. Most of them (11 species) have been from several trips to Colombia. I am originally from Puerto Rico where I was raised looking at some endemic hummingbirds. Living in the USA I have seen 8 species. In total I have seen 11 species of the ones featured in the course.
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I enjoyed this course very much. The section on sounds was really informative and I will revisit it again. I will also enjoyed the photos of owls from different countries. Now I will keep an eye for those also.
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Some of the sounds were new to me. I have heard Barred Owl, Screech Owl and Great Horned Owls and while living in Merced California, heard a Bobcat family, its amazing how many sounds we can hear at night if we live away from the cities.
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What I found interesting and did not know was the "Branching" behavior of owls. Although I knew birds will eventually leave the nest they hatched in, falling out of the nest may be a sure way to be entering the "food chain" as a prey. Watching the video of owls climbing back up a tree and getting themselves to safety is not something all bird species may be able to do. Strong legs and claws are sure helpful even at such young age.
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That is a wonderful photo! I have birded in Arizona but have only seen Great Horned Owls.
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I have personally seen Short-eared Owls hunting bats. So whatever they can catch will be fair game for food.
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I’m originally from Puerto Rico where I had the opportunity to observe in 1983 the Puerto Rican Owl, and Short-eared Owl during field trips as they were hunting some bats. When I moved to the USA to attend grad-school I saw in 1988 my first Great Horned Owl near the Research Triangle Park in North Carolina, and Barred Owl at the UNC Chapel Hill campus in 1989. In 1997 in Maryland during the Midwinter Montgomery County Bird Count I found a gray Eastern Screech-Owl looking out a Wood Duck box. In my first trip to Costa Rica in 2004 I observed and heard a Ferruginous Pygmy-Owl. I moved to California in 2007 and joined the faculty at UC Merced where in campus I had the opportunity to observe Burrowing Owl and Barn Owl. After I moved back to Maryland during the irruption in 2013, I followed various birders and saw my first Snowy Owl. For several years I have looked between November and December for the Great Gray Owl in Yosemite and Northern Saw-whet Owl in Maryland but as of yet not seen either but have found some regurgitated pellets indicating they were around.
Viewing 9 posts - 1 through 9 (of 9 total)