Hi Everybody!!
One thing about shooting photos outside in the same location is that the light is always changing. On this afternoon of 8-27, clouds were rolling through. Back lighting produced a silhouette effect on the hummingbirds and feeders. I have shared Wikipedia info below about "Silhouette". The time of day in the photos is 4:25pm. The birds are more active at the feeders during the evening hours as well as early in the morning. It is still around 100 degrees and they seem to rest in the trees mid day. Thank you all for coming by the migration and sharing with your friends! Enjoy!

Link to 8 27 evening Album photostudy:
https://plus.google.com/u/0/photos/117645114459863049265/albums/6065008383210546337

https://en.wikipedia.org/wiki/Silhouette

Silhouette

From Wikipedia, the free encyclopedia

A silhouette is the image of a person, animal, object or scene represented as a solid shape of a single colour, usually black, its edges matching the outline of the subject. The interior of a silhouette is featureless, and the whole is typically presented on a light background, usually white, or none at all. The silhouette differs from an outline which depicts the edge of an object in a linear form, while a silhouette appears as a solid shape. Silhouette images may be created in any visual artistic media,^[1] but the term normally describes pieces of cut paper, which were then stuck to a backing in a contrasting colour, and often framed.

Cutting portraits, generally in profile, from black card became popular in the mid-18th century, though the term “silhouette” was seldom used until the early decades of the 19th century, and the tradition has continued under this name into the 21st century. They represented a cheap but effective alternative to the portrait miniature, and skilled specialist artists could cut a high-quality bust portrait, by far the most common style, in a matter of minutes, working purely by eye. Other artists, especially from about 1790, drew an outline on paper, then painted it in, which could be equally quick. The leading 18th-century English "profilist" in painting, John Miers, advertised "three minute sittings",^[2] and the cost might be as low as half a crown around 1800. Miers' superior products could be in grisaille, with delicate highlights added in gold or yellow, and some examples might be painted on various backings, including gesso, glass or ivory.^[3] The size was normally small, with many designed to fit into a locket, but otherwise a bust some 3 to 5 inches high was typical, with half- or full-length portraits proportionately larger.

From its original graphic meaning, the term "silhouette" has been extended to describe the sight or representation of a person, object or scene that is backlit, and appears dark against a lighter background. Anything that appears this way, for example, a figure standing backlit in a doorway, may be described as "in silhouette". Because a silhouette emphasises the outline, the word has also been used in the fields of fashion and fitness to describe the shape of a person's body or the shape created by wearing clothing of a particular style or period.

Theatre, film and photography

Shadow theatre designed by Henri Rivière for Le Chat Noir

Scene from the film noir, The Big Combo(1955) filmed by John Alton

Band of Brothers, US soldiers silhouetted against a sunset sky.

Photography[edit]

Many photographers use the technique of photographing people, objects or landscape elements against the light, to achieve an image in silhouette. The light might be natural, such as a sunset or an open doorway, a technique known as contre-jour or it might be contrived in a studio; see low-key lighting. Silhouetting occurs when there is a lighting ratio of 16:1 or greater.