Chamchanga ni ndege wa jenasi mbalimbali katika familia ya Scolopacidae. Chamchanga tumbo-jeupe huitwa kiulimazi kwa kawaida. Ndege hawa ni weusi au kahawia na weupe, na wana domo refu na miguu mirefu na myembamba. Huonekana kandi ya bahari, viziwa au mito ambapo hukamata wadudu, gegereka hata samaki wadogo. Hutaga mayai 3-5 ardhini mahali majimaji. Actitis hypoleucos, Chamchanga Tumbo-jeupe au Kiulimazi (Common Sandpiper) Tringa erythropus, Chamchanga Madoa (Spotted Redshank) Tringa flavipes, Chamchanga Miguu-njano (Lesser Yellowlegs) Tringa glareola, Chamchanga-mtoni (Wood Sandpiper) Tringa nebularia, Chamchanga Miguu-kijani (Common Greenshank) Tringa ochropus, Chamchanga Kijani (Green Sandpiper) Tringa stagnatilis, Chamchanga-wangwa (Marsh Sandpiper) Tringa totanus, Chamchanga Miguu-hina (Common Redshank) Xenus cinereus, Chamchanga Kijivu (Terek Sandpiper) Actitis macularius (Spotted Sandpiper) Tringa brevipes (Grey-tailed Tattler) – zamani Heteroscelus brevipes Tringa guttifer (Nordmann's au Spotted Greenshank) Tringa incana (Wandering Tattler) – zamani Heteroscelus incanus Tringa melanoleuca (Greater Yellowlegs) Tringa semipalmata (Willet) – zamani Catoptrophorus semipalmatus Tringa solitaria (Solitary Sandpiper) Kiulimazi Chamchanga madoa Chamchanga miguu-njano Chamchanga-mtoni Chamchanga miguu-kijani Chamchanga kijani Chamchanga-wangwa Chamchanga miguu-hina Chamchanga kijivu Spotted sandpiper Grey-tailed tattler Nordmann's greenshank Wandering tattler Greater yellowlegs Willet Solitary sandpiper