Table 3.8. Waterbird species observed between Oct. and April at the Tijuana Estuary by Kus and 

 Ashfield (1989). Symbol=at least one occurrence per habitat (Uintertidal flats, M = salt marsh, 

 B=beach. S=sandflat, D=dune); *=species also studied by Boland (1981). 



Pelicans, Grebes and 

 Cormorants (PEL) 



Herons and Egrets (HER) 



Waterfowl (WAT) 



Small Waders (SW) 



Large Waders (LW) 



Gulls and Terns (GUL) 



Pied-billed grebe 



Eared grebe 



Western grebe 



Double-crested cormorant 



Brown pelican 



Great blue heron 



Great egret 



Little blue heron 



Reddish egret 



Snowy egret 



Canada goose 



American wigeon 



Gadwall 



Green-winged teal 



Mallard 



Northern pintail 



Blue-winged teal 



Cinnamon teal 



Northern shoveler 



Lesser scaup 



Surf scoter 



Common goldeneye 



Bufflehead 



Red-breasted merganser 



Ruddy duck 



American coot 



Spotted sandpiper 



Black-bellied plover* 



Killdeer* 



Semipalmated plover' 



Snowy plover* 



Ruddy turnstone* 



Black turnstone 



Least sandpiper* 



Red knot* 



Western sandpiper* 



Dunlin* 



Sanderling* 



Common snipe 



Light-footed clapper rail 



Black-necked stilt* 



American avocet* 



Willet* 



Yellowlegs species* 



Whimbrel* 



Long-billed curlew* 



Marbled godwit* 



Dowitcher* 



Bonaparte's gull 



Heermann's gull 



Ring-billed gull 



Mew gull 



California gull 



Herring gull 



Western gull 



Caspian tern 



Royal tern 



Elegant tern 



Common tern 



Forster's tern 



Black skimmer 



Podilymbus podiceps 



Podiceps nigricollis 



Aechmophorus occidentalis 



Phalacrocorax auritus 



Pelecanus occidentalis 



Ardea herodias 



Ardea alba 



Egretta caerulea 



Egretta rufescens 



Egretta thula 



Branta canadensis 



Anas americana 



Anas strepera 



Anas crecca 



Anas platyrhynchos 



Anas acuta acuta 



Anas discors 



Anas cyanoptera 



Anas clypeata 



Aythya affinis 



Melanitta perspicillata 



Bucephala clangula 



Bucephala albeola 



Mergus senator 



Oxyura jamaicensis 



Fulica americana 



Tringa macularia 



Pluvialis squatarola 



Charadrius vociferus 



Charadrius semipalmatus 



Charadrius alexandrinus 



Arenaria interpres 



Arenaria melanocephala 



Calidris minutilla 



Calidris canutus 



Calidris mauri 



Calidris alpina pacifica 



Calidris alba 



Gallinago gallinago 



Rallus longirostris levipes 



Himantopus mexicanus 



Recurvirostra americana 



Catoptrophorus semipalmatus 



Tringa spp. 



Numenius phaeopus 



Numenius americanus 



Limosa fedoa 



Limnodromus sp. 



Larus Philadelphia 



Larus heermanni 



Larus delawarensis 



Larus canus 



Larus califomicus 



Larus argentatus 



Larus occidentalis 



Sterna caspia 



Sterna maxima 



Sterna elegans 



Sterna hirundo 



Sterna lorsteri 



Rynchops niger 



I 

 I 

 I 



l,S 



I 



l,M 



l,M,D 



l,M,D 



I 

 l,M,D 



I 



l,M,D 



I 



l,M 



I 

 l,M 

 I 

 I 

 I 

 I 

 I 

 I 

 l,M 

 I 

 I 



1,8 



l,B 



l,M,B,S,D 



I.M.D 



l,B,D 



l,B,D 



l,M,S,D 



I 



l,B,D 



I 



l,B,S,D 



l,B,S,D 



l,B,S,D 



M 



l,M 



l,M,S 



l,D 



l,M,B,S,D 



l,M,D 



l,M,B,D 



l,M,S,D 



l,M,B,S,D 



l,M,S,D 



I 



l,B,S 



l,M,B,S,D 



B 



l,S,D 



l,S,D 



l,M,B,S,D 



l,D 



1,8 



I.S.D 



S 



l,B,S,D 



I 



