Horn Sharks And Rays: Our First Dive In The Sea Of Cortez A Success!

The purpose of our dive was to photograph Horn sharks and we got lucky on our second dive around Danzante Island in the Loreto Bay National Marine Park, Sea of Cortez, Mexico. Thank you to Juan Carlos Reyes Valerio our dive master for finding these rather reclusive sharks. Although we found 3 different horn sharks, 2 were deep in crevices and they were impossible to photograph. However, it only takes one and this shark was out in the open apparently waiting to be photographed. Horn sharks are not strong swimmers and this shark is trying to tuck as close to the rocks as possible.

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Horn Shark

This area has more than sharks and we saw 3 different species of ray, two that stayed still long enough for us to photograph. The ocellated electric ray or bullseye electric ray (Diplobatis ommata) can generate a moderate electric charge for self-defence. The bullseye or ocellus on the back is very distinctive and is where it derives its name. It is a small ray reaching about 10 inches (25cm) in length.

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Bullseye Electric Ray/Ocellated Electric Ray
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Bullseye Electric Ray/Ocellated Electric Ray

The second ray we were able to photograph was the spotted round ray also known as the Cortez round ray (Urobatis maculatus). They have short tails compared to many other rays and reach a length of about 17 inches (45cm). This ray didn’t stick around for very long before it headed to deeper water.

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Spotted Round Ray/Cortez Round Ray
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Spotted Round Ray/Cortez Round Ray

A surprise for us to come across was the banded guitarfish (Zapteryx exasperata). We were not aware that there were a guitarfish species in the Sea of Cortez. This fish can reach up to 4 feet (1.25m) and has both dorsal fins of nearly identical size. Unfortunately, it had its head facing away from us partly going into a crevice.

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Banded Guitarfish

 

 

Hummingbirds In Baja California Sur, Mexico

Every day we walk the arid canyons and hills around Danzante Bay along the Sea of Cortez. The sparse vegetation has many cacti and some flowering shrubs. Surprisingly, we see hummingbirds out here on a regular basis which we did not expect.

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At Villa Del Palmar where we are staying, they have flowering plants that attract the hummingbirds on a regular basis. There are two species that we have identified. The Xantus’ and the Costa’s hummingbirds.

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Costa’s Hummingbird
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Xantus’ Hummingbird

Hummingbirds proved difficult to photograph as they don’t stay still for very long. To get closeup shots we shot at 600mm with our 150-600mm lens. With such a narrow field of view, it takes time to find the hummingbirds. After you find it the next step is to focus on the bird but most of the time the hummingbird has decided to move to the next flower. They zip around from flower to flower in a very irregular pattern.

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Costa’s Hummingbird

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Xantus’ Hummingbird

The key to getting these photos was patience and taking lots of photos (most of them were discarded). Hopefully, you will enjoy these beautiful little birds.Hummingbird7

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Xantus’ Hummingbird
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Costa’s Hummingbird
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Xantus’ Hummingbird
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Costa’s Hummingbird

Crevice Weaver Spider (Kukulcania) In Baja California Sur, Mexico

Mystery solved thanks to Spider ID! We stumbled across a large tarantula a few weeks ago that we definitely identified as a Baja tarantula. However, over the last number of days, we have been photographing this spider but couldn’t positively identify it. We were told it was a tarantula but we have discovered that although it is commonly misidentified as a tarantula, it is actually a female Crevice Weaver Spider (Kukulcania).

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There are about 8 individual spider webs like the one below across a 30-foot wide volcanic rock outcrop. It is smaller than the Baja tarantula with the body segments about 1 inch (2.5cm) not including the legs.

Web

The two pictures below were taken on a sunny day which makes the spider look darker. The second picture is a close-up to highlight the eyes.

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spider closeup

This spider came out of his den to investigate what was caught in his web. It attacked the beetle, I assume biting it, spun some web and went back in its den. The whole encounter lasted less than 45 seconds and was fascinating to watch.

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