pair of canada geese biting each other close-up one with feathers in it's beak - san joaquin marsh 個照片及圖片檔
pair of tree swallows calling to each other as they fly to and from nesting box - san joaquin marsh 個照片及圖片檔
two tree swallows perched on a bare branch with a soft green and brown background - san joaquin marsh 個照片及圖片檔
low angle view of a spotted towhee bird perching and singing on a tree branch against a blue sky - san joaquin marsh 個照片及圖片檔
