Your basic wing shape is created by first drawing a rough square/rectangle next to the bird's body. Then draw a long, downward arch for the main flight feathers. Draw a line from more than half way down that square and curve it upwards when you reach the top of the flight feather area. It should look like a rectangle and a small arch at the top of your wing.
Next, create tiers of downward lines at the top of your wing with a 'thumb' at the end. The lower half of the wing (on the square-shape half), devide that band at the bottom with wide spaces. The main flight feathers, called primaries, are like the bird's fingers with a little feather at the top, then a few longer ones going down the wing. You need to draw long rectangles with pointed ends. Then go over in pen and rub out the pencil marks.
Next up is to draw the basic shape of each bird. For the wings, follow the stages I've gone through earlier. Just draw round the lines to make squares and triangles. Some are positioned so that the wings point out in front of their heads. Others are pointed down towards their tails. The drawing on the top right is hovering and each wing is pointed in different directions above it's body. One wing is drawn slightly bigger than the other to show distance to us (one wing is closer to our perspective, etc). The same goes to the drawing on the bottom centre.
Stage Four is to re-draw in pen and add more detail to each bird's plumage. Remember to rub out the pencil marks and to add the detail by shading lightly or heavily in each part of the bird to show light and shadow and plumage shades.