Savannah Vs Song Sparrow
--Savannah Sparrows have shorter, notched/forked tails whereas the Song Sparrow tail is long and has a rounded edge.
--Savannah Sparrows have smaller bills and a smaller head than the Song Sparrow.
--Savannah Sparrows have crisper streaking on the breast than a Song Sparrow; both may have a dark smudge/spot on their breast but remember the smudge may not always be seen.
--Savannah Sparrows like Song Sparrows have after the eye patch a thin black whisker or malar mark, then a white malar stripe that can followed by a dark malar stripe. In a Song Sparrow the dark malar stripe by the throat is considered a prominent feature for identification.
--Savannah Sparrows show yellow, in the stripe over the eye, which is known as the supercilium, that people may refer to as the eyebrow. This yellow coloring extends to the lores, which is that small area between the eye and beginning of the bill. The yellow coloring in the supercilium and lores in the winter is not as prominent and can almost appear beige. Another bird you may see with yellow lores in the winter is a White Throated Sparrow.
For decades, people have written off birds as largely witless, driven solely by instinct, and their brains as primitive, capable of only the simplest mental processes. But it is not so. In recent years, science has discovered that birds are much, much more intelligent than we ever supposed. Ravens, crows, jays, even hummingbirds do things that are just plain smart—and funny and sneaky and deceitful. They craft and use tools, sing to one another in regional accents, make complex navigational decisions without asking for directions, remember where they put things using intricate geometrical concepts, understand the mental state of another individual, josh around with windshield wipers, and use rolling car tires to crack walnuts, all sorts of intelligent behavior that we can see in evidence in our own backyards, at our birdfeeders, in parks, city streets, and country skies, and all with a packet of brain so tiny it would fit inside a walnut. This book explores the new view of birds as cunning, playful, clever, artistic, deceptive, and socially and technically adept.was discussed and
Field Marks To Help You With Birding Identification

Image by Charles Ripper/Cornell Lab

Image by John Schmitt/Cornell Lab.
· Wingbars (stripes across the folded wing)
· Wing patches (blocks of color on the wing)
· Wing lining (the feathers covering the underside of the wing)
· Primaries (the long flight feathers on the outer half of the wing)
· Secondaries (the flight feathers on the inner half of the wing)
· Speculum (the patch of colored secondaries that helps identify many ducks)
· Wing tips

Image by John Schmitt/Cornell Lab
· Eyebrow stripe or superciliary:,line over the eye)
· Eyeline (line through the eye and note how far it extends)
· Malar stripes/whisker/mustache: note whether thick, thin, multiple stripes and colors
· Throat patch
· Upper and lower beak: note shape, size, color, whether upper and lower are same color
· Lore color: area between base of beak and eye)
· Crown stripes: stripes in the midline of the head)
· Eyering: ring of color around eye, note shape, may be broken or only an arc at top or bottom of the eye
· Crest: if present note color
· Iris eye color