Bird watching in San Carlos and Guaymas, Sonora Mexico: discover local birding habitats and the birds that live there. One of the things that makes San Carlos so wonderful for birding is that we have desert birds, salt water birds and lots of migratory birds that stop in and use our estuary “bird motels” on their way south in the fall and north in the spring. So places don’t move but they can seem new as different birds check in.
If you head into the estuaries, desert, mountains and along the ocean-shore, these are some of the many birds you can find:
- Roseate Spoonbills
- Blue-footed boobies
- Osprey
- Varied Bunting, Lazuli Bunting
- Black-bellied Whistling-Ducks
- Heron: Green, Blue, Little Blue, Tri-colored and Yellow and Black-crowned Night Herons
- Grebe: least, eared
- Orioles: Hooded Orioles
- Hummingbirds
- Cactus Wrens
- Cardinals: Northern Cardinals
- Pyrrhuloxia
- Craveri’s Murrelet
- Long-billed Curlew
- Tern: Caspian, Royal, Elegant and Forster’s
- Black-necked Stilt
- American Kestrel
- Egret: Reddish
- Pelican: Pacific Brown
- Warblers: Wilson´s, Mangrove, Orange-crowned, Yellow-rumped, Black-throated
- Crested Cara Cara
- Greater Roadrunner
- Doves: white-winged
- Vermilion Flycatchers
- Mockingbird
- Magnificent Frigatebird
- … and so many more
Locations for Bird Watching in San Carlos
- The ocean shores
- Piedras Pintas (a good place for the Green-tailed Towhee)
- San Francisco Beach
- check out San Carlos beaches for more ideas
- The desert
- Estuary Soldado by Pilar
- The little estuary by the Esterito Cafe
- The El Palmar and Paradiso settlement ponds. This series of three settlement ponds for the San Carlos Plaza Hotel is located a little west of the hotel and about ⅓ mile north. Turn right at the cattle crossing sign. The road is rough and clearance is required.
- Country Club Settlement Ponds. To reach the pond, go through the gate to the Country Club (the roads are public, you will have no trouble entering). Go past 3 topes and park where you can and walk in (south towards Tetakawi Blvd).
- The trees throughout the country club
- Settlement ponds behind Marina Seca
- Miramar Estuary
- Empalme Estuary
- Rancho Ojo is on the road to the Rancho Ojo de Agua. To get to it, you drive to La Manga and then take the road north and keep going towards the mountains. It is right on the road and is a cistern of water and a couple of grassy wet spots for the cattle that roam that area.
- Champs Pond. After it rains, it’s a little spot of water between Champs on the east and Triana condos on the west. It is overflow from rains and birds love to take advantage of water holes in the desert. Lark Sparrows, Short-billed Dowitcher, Killdeer, and Semipalmated Plovers, Vermilion Flycatchers and Least Sandpipers.
- Nacapule Canyon
- Boat trip: San Nicholas Rock, the Island, Honeymoon Island (Brown pelicans nesting), all along the shore
Supplies for Bird Watching in San Carlos
- Binoculars. Binoculars are your most important tool in birding and a good pair will greatly increase your enjoyment. Mary uses Swift Audubons 8.5 x 44 ($300 USD). Consider also a spotting scope.
- camera
- bug spray
- sun protection: spray, hat
- folding chair
- bird book, bird app on smart phone (see list below)
Birding Resources for San Carlos Bird Watching
- iBird Pro (on Google Play and iTunes)
- Audubon’s guides to North American Birds
- allaboutbirds.org
- Sibley’s app (on Google Play and iTunes)
- The Cornell Lab Merlin ID Help app (on Google Play and iTunes)
- National Geographic’s “Field Guide to the Birds of North America”
- before you head out, check San Carlos Weather
Thank you to by Dave Verner and Mary Tannehill for their birding contributions and for leading the weekly bird watching outings. For more info on the outings, checkout the newsletter. In the winter months, the group usually meets once a week at the Esterito Cafe in the Bahia. Photos by Fred Gaunt, Darwin Parks and others.
Bird Watching in San Carlos: types of birds
Pacific Brown Pelican
According to Sibley´s Birds of North America, the Brown Pelican is one of only two pelicans that dive for fish. That big ole’ bill can hold 4.5 pounds of fish at one time! The average pelican will eat 4 – 4.25 pounds of fish a day. That puts the Gulf of California hard at work producing all that fish, because there are a lot of pelicans around. The other pelican around here (also spectacular) is the White Pelican and it does not dive. The Brown can dive from up to 60 feet above the water and often completely submerges. They will dive bomb in groups after fish and somehow manage to not hit each other. The pelican dives at speeds of 60 mph (100 kmh) on the average dive, and they have air pockets in their heads to soften the repeated shocks of a lifetime of diving for fish. Although they look rather gangly as they sit around on land, the Brown Pelican is a very graceful flyer. You will often see them flying in a line only inches above the water. They remind me of a navy fighter squadron. They are also a very social bird – with each other and other birds too. You never seem to see them fighting over territory or being just grumpy. Herrman´s Gulls will often pick a Brown Pelican to hang with hoping to steal the food he catches. I have yet to see them actually get any but they must because they keep doing it and the Brown doesn´t seem to mind. He just ignores them. Being in breeding colors means, of course, that they are breeding. They breed in colonies on the little islands in the Sea. According to Birdpedia, ´They are highly sensitive to disturbances by humans and may abandon their nest if stressed.¨ So please obey the Mexican regulation that prohibits accessing any Sea of Cortez islands without a special permit. The brown pelican is a long-lived bird, with a life span of 30 – 35 years. The brown pelican in the Western states develop a yellow buffy head, along with a red area around the mouth during breeding season. The East coast birds lack this color change, even though they are both brown pelicans. |
![]() American OystercatcherThe black and white American Oystercatcher has bright yellow eyes and a very bright red bill and hangs out at the beach. The oystercatcher lives here all year. This large, boldly patterned bird, is conspicuous along ocean shores. True to its name, it is specialized in feeding on oysters, clams, and mussels. The American Oystercatchers use their long, bladelike, brightly colored bills to catch shellfish unawares, seizing them before they can close up. You’ll notice that these birds frequently walk or run along the shoreline, rather than fly. Their bird calls sound like loud, whistled “wheeps”. I have found that I almost always see the Oystercatchers in pairs and, according to the literature, they are monogamous. |
![]() HummingbirdsOctober is an exciting month in the world of birds. Although migration starts as early as late July in some parts of North America, in San Carlos and Northern Mexico, October is the month that things start to really roll. Normally throughout the summer, I will have a steady stream of broadbills at the bird feeder. But come October, the broadbills are joined by Costa’s and Black chinned. I’ve even have had one or two Violet crowned hummers show up. You can identify these fairly simple birds by a very white belly and throat area, plus the violet crown in good light. |
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At the Country Club, we saw ten Black-bellied Whistling-Ducks. This bird is not just a duck. The name is actually Whistling-Duck and besides Mexico, they are not commonly seen in the US except for Texas, Florida, Louisiana, and a small area in Arizona. Although they are not considered a migratory duck, they do move about some and ours are mainly here in the summer. We first saw them this week. IBird Pro says the Black-bellied Whistling-Duck is quite unique among ducks because they are strongly monogamous. Pairs often stay together for many years and both parents share all tasks involved with the raising of the young including sitting on the eggs in the nest. We noticed the pairings when observing them at the Country Club Pond. They are very beautiful as you can see from the images. |
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![]() ![]() Little Blue HeronThe viewing we had this week was far different than the normal slate blue of the adult. That is because we saw a juvenile Little Blue and it wasn´t blue at all, it was white (pictured on left). As you can see from the photos, there is a big difference between the adult and juvenile. The Little Blue Heron is one of my favorite herons and is a year-round resident here. It is petite compared to the other Egrets and Herons, and the blue is like no other. It is more intensely blue than the Great Blue Heron (pictured on right) which is actually grayish and it has a lovely blue bill that turns into black towards the tip. Some guides describe its color as slate, but the Cornell Lab of Ornithology allaboutbirds.org site describes it as “a small, dark heron arrayed in moody blues and purples.” Isn´t that a lovely description? The white juvenile is about the same size as the Snowy Egret (black legs, black bill and bright yellow feet) and according to Cornell, “White little blue herons often mingle with snowy egrets. These young birds actually catch more fish when in the presence of the snowy egret and also gain a measure of protection from predators when they mix into flocks of white herons.” Our little guy, however, was all by himself. |
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![]() Craveri’s Murrelet I like it for two reasons. 1. It is adorable; and 2. It is a bird almost exclusively seen in the Sea of Cortez and the Pacific side of the Baja Peninsula. It breeds in the Sea of Cortez. This plump little seabird is a threatened species that iBird Pro says prefers rocky cliffs and offshore waters. It feeds, like all pelagic birds, on fish. It dives down from the surface for rockfish, herring, and lanternfish. IBird Pro says the Craveri’s Murrelet is “reminiscent of a small, flying penguin.” In other words, irresistible. Pelagic birds are birds that only come to land for breeding. The rest of the time is spent flying above the sea, fishing in it, and resting upon it. Therefore, you will not be observing them from here in San Carlos. For you fishing enthusiasts, you have many opportunities to spot some of these birds as you fish far from shore. You can see Red-necked Phalarope, Black-vented Shearwater, Craveri’s Murrelet, and the Pomarine Jaeger. Also at sea you can see Blue-footed boobies, Elegant Terns, and Eared Grebes, all of which you can also see from land. |
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![]() March is the time to head to any of the estuaries to see this almost comical bird. He only winters here and will be leaving soon. Like the Marbled Godwit this large bird is actually a Sandpiper but definitely not a little peep as we birders refer to the tiny sandpipers along the shore. He is defined by his extremely long bill. His bill is “decurved” which means it points downwards rather than that slight up tilt the Godwit has. Here we see the Curlew almost exclusively at the estuaries, but in migration you could well spot him on lakes or river shores as well as mudflats, salt marshes or sandy beaches. He is adaptable. He will feed on insects, worms, crustaceans, mollusks and small vertebrates including the eggs and young of other birds. We usually see him here probing the mud flats. While the Long-billed Curlew looks like it might tip over any moment, it is a very attractive bird. If you are lucky enough to see him fly, you can identify him by the cinnamon-brown underwings. They are gorgeous. The Long-billed Curlew is the largest shorebird in North America. But, you may say, “How can that be because I see birds along the shore of the estuary that are much larger?” You are correct; but, those birds (such as our herons and egrets) are not shorebirds. They are wading birds. And that is as far as I am willing to wade today into the complex world of Birdlandia. Or bad puns. |
![]() The Elegant Tern migrates through our area in March. You can find large flocks of them resting at the mouth of Estero Soldado and loudly diving for fish in the Bahía San Francisco. According to birdlife.org, the Elegant Tern “is considered Near Threatened as it has a restricted breeding range, with more than 90% of the breeding population being restricted to a single island.” That island is the Isla Raza which is almost directly west of Hermosillo near the Baja coast in the Sea of Cortez. When the Elegants arrive here, they are checking into our Estero Soldado “bird motel” to rest and recover from flights as far away as Chile in South America. We are fortunate to have the Caspian and Royal Terns around us almost all winter. The Elegant Tern visits in the fall and spring and is the smallest of the three. It gets its name from its bill which is longer and less clunky than the others. If you see the Terns together, it is easy to spot the Elegant because it is smaller, but size is not a good marker when a bird is alone. If it is only with others just like it, look at the orange bill. It has a slight downturn (decurved in bird idiom) and is rather thin appearing. It is also known for its black shaggy crest, but I have found that when the wind is blowing the other terns can appear “shaggy” also. When it is flying, I usually identify it by the noise it makes. IBird Pro calls its call “a grating karreck, karreck.” That is it exactly and it does love to “karreck” joyously with its mates while fishing. |
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![]() Cinnamon Teal The Teal is a small dabbling duck. With ducks, you have dabblers and divers. Divers are just what it sounds like, and dabblers forage by skimming the water with their bill or dabbling with their heads in the water and their butts in the air. Dabbling ducks are also different in how they are built. According to a Stanford University web page, “Dabblers have large wings relative to body weight and fly slowly, which enables them to drop down onto small areas with precision. Divers, on the other hand, have small wings relative to body weight and fly faster, but must remain in open water with sufficient runway space because they lack the ability to land on a dime and must run along the water surface to become airborne.” This explains why many of the ducks we see in the settlement ponds are dabblers. They can easily drop from the air into these small ponds that would not have enough runway room for the divers. |
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![]() Great KiskadeeThis large, bright yellow flycatcher is always a treat to see. We are about as far north as it gets and I don´t think I have seen it anywhere around here except at Empalme. We see it often when we continue south to Ciudad Obregón. IBird Pro says it prefers rivers, streams and lakes bordered with dense vegetation. Empalme has dense mangroves and some brackish water that seems to count for a lake for our Kiskadee because I have seen him here for several years. It is usually hanging around (in the thick vegetation around the brackish pond). |
![]() MerlinI saw this bird out at El Palmar. The Merlin is a small falcon and lives all over Mexico and a large part of the US and Canada. According to iBird Pro, it likes to eat small birds such as larks, swallows, finches and also small mammals, lizards, snakes, and insects, especially dragonflies. El Palmar has an abundance of dragonflies sometimes so it is not surprising it was hanging out on a dead tree branch when I saw it. |
![]() Common Black-HawkThis bird is not really common at all and if you are looking to add it to your life list, the estuary by the Esterito Cafe is the best spot. According to iBird Pro, it feeds on snakes, frogs, fish, young birds, and land crabs. I think ours might prefer fish. They are nearly all black but have feet and a bill that are bright yellow. In the attached photo you can see the unmistakeable thick white band on the tail. It’s a great bird. |
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![]() Magnificent FrigatebirdWe often see Magnificent Frigatebirds flying overheard in San Carlos…whether in the County Club or by the water. They are also known as the man of war bird and the pirate bird. The frigatebird, with its black, long wingspan menacingly hovering in the sky looking for nests to steal eggs from, is actually quite a beauty when it comes to love. Male frigatebirds have red kidney-shaped pouches on their chests that they inflate like balloons to attract girls (see photo on left). During mating season, the male sits on a nest and gyrates his puffed-up chest at the females flying overhead. When a female sees a male she likes, she lands beside him. However, copulation is often interrupted when other jealous males jump on the chosen partner and try to puncture his red balloon. |
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