Tag Archives: nature photography

ZW Gender Determination

Sex determination in mammals and most other animals is via the XY chromosome system. Simply put, the X and Y chromosomes determine the sex of the offspring. A female has two X chromosomes, one from the father and one from … Continue reading

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Golden Paper Wasp

The golden paper wasp (Polistes aurifer) is found in Western United States from Texas to Montana west to the Pacific Coast. It also inhabits Southern British Columbia and parts of Mexico. Golden paper wasps are variable in color. Some are … Continue reading

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The Deer Who Came To Dinner

In Kaufman and Hart’s 1939 comedy “The Man Who Came to Dinner”, Sheridan Whiteside came to dinner at the Stanley household in Ohio and through circumstances did not leave. The mule deer (Odocoileus hemionus) ranging through our yard in search … Continue reading

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Large Flowered Brickelbush

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Large flowered brickelbush (Brickellia grandiflora) was named for John Brickell (1749 – 1809), a Georgia physician and botanist originally from Ireland. Growing from 1 to 3 feet in height, this wildflower or shrub can be found growing in canyons, washes … Continue reading

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Fox Squirrel

The fox squirrel (Sciurus niger) is native to the eastern half of the United States. This tree squirrel was introduced into cities, large private estates and campuses in the West where they have thrived, often to the detriment of the … Continue reading

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Fledgling Anna’s Hummingbird

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Continuing with the Anna’s hummingbird (Calypte anna): As I mentioned in a previous post (Female Anna’s Hummingbird 11-04-2016), Anna’s hummingbirds do not form pairs. The female Anna’s hummingbird builds the nest, broods the eggs and cares for the young without … Continue reading

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Female Anna’s Hummingbird

This gallery contains 2 photos.

Like her male counterpart, the female Anna’s hummingbird (Calypte anna) is mostly grey and greenish. However, she does not have his iridescent red head and gorget feathers, although the throat is sometimes blotched with a few red feathers. Anna’s hummingbirds … Continue reading

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