How to draw a house sparrow

Find your reference pic.

Draw the basic shape.

Refine the shape

Refine it some more, and lighten the marks

Add some details

Start shading. I like to start with darker places first, beginning at the head.

Add detail to the head eyes

Continue shading

Do the belly and the tail

Shade the wings. Pay attention to the feather patterns.

Fill in the feet

Add some more shading to make the bird look more realistic. Clean up the smudges, then draw the perch.