Author: myip2014

You never see a whole whale, but you get glimpses, from which you can reconstruct the entire animal.

They surface to breathe, and blow. When their blowholes are closed, they look like this: a pair of blowholes, with a depression between them. On this particular whale they are heavily encrusted with barnacles.

And when they are open, they look like this:

When you touch them their skin feels tight and smooth, like an over-inflated heavy-duty rubber beach toy, but they are not quite hairless. About 80 tiny stiff white whiskers (vibrissae) come out of the dimples in their heads, and they are thought to have sensory uses.*

They eat tiny organisms that are found in the mud on the sea floor, using a feeding mechanism unique to gray whales. They swim down, roll onto their right sides, scoop up a big mouthful of gunk and filter out the water and sediment through their baleen plates, leaving small crustaceans called amphipods behind. You can just see the baleen in the photo below, towards the left-hand side of the whale’s slightly open mouth.

And when one surfaces, look how the water cascades out of its mouth:

Close-up, the adults are covered in barnacles (and tiny orange “whale lice”, small harmless crabs that I failed to photograph).

They swim languidly along, apparently doing not much of anything, but sometimes they swim upside down, like this one, showing its two throat grooves (more of that later):

and roll over onto their sides:

showing the pectoral fin (on top in this photo):

Sometimes, if she decides to turn sharply, you can see the spine and tail, which has no dorsal fin, just a series of 9-13 fleshy knuckles along the backbone:

And of course, the supremely elegant tail:

The whole animal looks like this; the drawing was made by Captain Scammon, of whom more later.

 

 

Next time, fluking, breaching and spyhopping!

* A stranded newborn grey whale calf was dissected in San Diego in 2015, and the fascinating results can be read here:

https://www.researchgate.net/publication/273151093_Eye_Nose_Hair_and_Throat_External_Anatomy_of_the_Head_of_a_Neonate_Gray_Whale_Cetacea_Mysticeti_Eschrichtiidae

 

 

 

 

[Whales will return, but this can’t wait.]

This morning we woke up to a new world: I am not a poet, but luckily the 19th century Englishman John Clare said it all in the poem at the end of this post.*

 

The beaver pond had refrozen just enough to collect shadows as the sun rose:

The cottage is waiting for guests..

And when I returned, I baked my first ever loaf of sourdough (yeast is hard to get now):

* The Winter’s Spring, by John Clare 

The winter comes; I walk alone,
I want no bird to sing;
To those who keep their hearts their own
The winter is the spring.
No flowers to please–no bees to hum–
The coming spring’s already come.
I never want the Christmas rose
To come before its time;
The seasons, each as God bestows,
Are simple and sublime.
I love to see the snowstorm hing;
‘Tis but the winter garb of spring.
I never want the grass to bloom:
The snowstorm’s best in white.
I love to see the tempest come
And love its piercing light.
The dazzled eyes that love to cling
O’er snow-white meadows sees the spring.
I love the snow, the crumpling snow
That hangs on everything,
It covers everything below
Like white dove’s brooding wing,
A landscape to the aching sight,
A vast expanse of dazzling light.
It is the foliage of the woods
That winters bring–the dress,
White Easter of the year in bud,
That makes the winter Spring.
The frost and snow his posies bring,
Nature’s white spurts of the spring.

John Clare

[This post is the first of several about these remarkable cetaceans. I’ve decided to stretch it out over three or four posts because I figure you are all as bored as I am, or soon will be. I hope in these difficult times when we are all cooped up at home it helps you remember there is a big beautiful world out there that we will one day see again.]

My trip to Mexico was prompted by tall tales of gray whales that come up to small boats to be stroked. Hard to believe, right? And yet it is true. Proof:

The calf has its rostrum (upper jaw) out of the water, and its barnacle-encrusted blowholes on the right of the photo are closed. Its left eye can just be seen at water-level. And I am stroking a baby whale.

The gray whale, Eschrichtius robustus, is smaller than the blue whale, weighing about 40 tons and measuring about fifty feet, but even so it gives birth to a fifteen foot calf.

The Eastern Pacific population of whales spend their summers in the Northern Pacific feeding, then migrate down the coast of North America to mate and give birth in the quiet lagoons of Baja California. This migration is a round trip of up to 14,000 miles, one of the longest of any mammal. If you go to Baja between January and March, you stand a high chance of seeing them while the calves are building up blubber for their long journey north.

We stayed in Camp Ramon on the shore of San Ignacio Lagoon:

and went out twice a day in 23 foot skiffs called pangas, wading out to them in the wellies thoughtfully provided by our hosts.

The park authorities allow a maximum of 16 boats in the area on the lagoon where whale-watching is allowed, and only 2 boats are permitted near any individual whale. The area is large, many square miles. In practice we never had to share a whale.

Here are a mother and calf swimming side by side:

Some whales are skittish round the boats, as you would expect, keeping a certain distance, maybe swimming around the boat or under the boat, but not coming alongside. But for whatever reason some have decided the boats are large friendly blue creatures with tentacles that reach out and pat them, so they bring their calves to the boats and allow them to be greeted by us humans.

When they come close, they are exactly like very very large puppies:

Gray whales were hunted almost to extinction in the 18th and 19th centuries. They were known as “devilfish” because they defended themselves when hunted, often overturning small whaleboats: unreasonable, really. This is what they look like when approaching your small boat at high speed: quite intimidating if you have reason to think they are intent on revenge:

Captain Scammon, a Mainer who discovered one of the the Baja calving lagoons, worked out that if he harpooned the baby the mother would come close to rescue her, and then he could easily harpoon the mother too. It’s quite hard even to think about it nowadays.

The global population has, remarkably,  recovered to close to pre-whaling levels of 20,000. Usually the San Ignacio Lagoon count (in January, when both mating and birthing happen), is around 400. This year, worryingly, it was only 150, and no-one knows why. The hope is that they just went to a different lagoon, but those counts are not yet in.

Next time I’ll talk in more detail about how they look, feed and move.

 

 

 

[This is the first of a couple of posts on whales, as a result of a trip I just took to Baja California (which is in Mexico, as opposed to upper California which is in the USA). All the photos are taken from a small rocking boat, and the whales are usually not that close, so I hope you are not disappointed! The later installments on grey whales have far more exciting photos, because they come much much closer.]

Blue whales, Balaenoptera musculus, breed in the Sea of Cortez (aka the Gulf of California) so we traveled to Loreto in Baja California to find them.

They are the largest animal on earth. One was measured at 98 feet, and 80 feet is common. Here is a photo next to one of our boats. The boat measures 23 feet, and only about 1/3 of the whale, the long grey shape to the right of the boat,  is visible above water:

Or look at the size of this tail, just behind the boat:

They are baleen whales, and eat only krill, astonishing that they can grow to such size.

To get a sense of what the whole animal looks like below water, look at this; just above the second image is a tiny shape of a human diver, for scale:

From the small boat,  you only see bits. Here is one blowing, the first part you see above water:

When they dive, you see the muscles that lift the tail, the powerhouse which moves their 190 tons mph at up to 25 knots in short sprints:

And then the tail lifts:

And down she goes

The markings under the tail help in ID-ing individual whales: the one just above is called Calabaza.  The Loreto area has 10-15 whales during the breeding season.  The Sea of Cortez is thought to have about 50 at this time of year.

Wikipedia says: “ The International Whaling Commission catch database estimates that 382,595 blue whales were caught between 1868 and 1978. The global blue whale population abundance is estimated to be 10,000-25,000 blue whales, roughly 3-11% of the population size estimated in 1911.”  Killing blue whales was outlawed in 1967, and the Eastern North Pacific population is back to close to pre-whaling levels of around 1500. Currently the major threats include ship strikes, as can be seen by the tail below; climate change, which may reduce krill populations; man-made noise pollution; and microplastics.

Also in the Sea of Cortez are Fin Whales, Balaenoptera physalis, which are nearly as large. Here is what to look for, and then a photo of one of the pair that we saw:

If you compare the Fin Whale’s dorsal fin above to the Blue Whale’s very tiny one below:

you can then understand why the guides think that this next one is a hybrid:

Near Loreto, even the clouds look like whales:

PS The first underwater footage of a blue whale was captured in 1980 by Krov Menuhin, a neighbor of mine in England. You can see it here; the blue whale section starts 15 minutes in:

PPS Moby Dick was a sperm whale, and although Herman Melville claimed he was the biggest creature that ever lived, at a maximum of 68 feet this is just not true! Just for fun, and for the grandkids, look at this blue whale size comparison graphic :

[Taken from https://www.ocean-institute.org/general-information/blue-whale ]

PPPS Our guide for the Sea of Cortez was the charming Maria Narjela.

PPPPS I entered our sighting of Calabaza into Happy Whale, a registry. I get notified when he is seen again. He was seen four years later in February 2024, which is good news.

The Crested Caracara, Caracara cheriway, is the Beau Brummell of birds, a dandy with a certain air, sometimes called the Mexican Eagle. And yet he is a falcon, not an eagle, and merely a lowly scavenger.

Caracaras are mainly a Central and South American species, and in the United States, they are only found in small areas of Arizona and one tiny area in Florida, south of Lake Okeechobee, where I was lucky enough to find myself.

It is spring and they know it:

They are monogamous, staying together as a pair for many years. The mechanics of bird mating are not obvious: here is a good explanation for those of a prurient turn of mind!

https://www.thespruce.com/how-do-birds-mate-386108

I saw two different pairs, both feeding on small mammals. This pair were “sharing” a dead baby raccoon:

I am afraid that is not spaghetti that you see below.

And after dismembering it they took bits off to safer perches to eat:

They like open country, and this countryside (Dinner Island Ranch Wildlife Management Area) was amongst vast flat industrial-scale sugar-cane farms; they seemed to like hanging out in the sheds and barns nearby.

On the wing, they are acrobatic and elegant, with a wingspan of up to four feet:

The name “caracara” is supposedly from the Guarani Indian traro-traro, after the rattling vocalization that they produce when upset:

My excellent guide Bob Branham knows these parts like the back of his hand, and showed me many good things, especially raptors, some more of which I will show you in the next few weeks! And if you want to see his photos, way better than mine, here they are:

 

 

 

[I am still organizing my Florida photos, and anyway one can have too many bird posts, so I am returning to Tanzania for perhaps the last time.]

We saw this pride of three lions, a mother, sister and and near-adult son, on several separate occasions in the Ruaha.

They appeared to be struggling. We watched them stalking game, but never getting close enough to launch an attack. They were thin, ribs showing:

The family dynamics were interesting. When the mother approached her sister,  the sister snarled,

But when the mother then approached her son they showed clear affection, gently rubbing noses.

They looked skinny, but sometimes they killed, and late one afternoon we found them, bellies swollen, lying in the setting sun:

We didn’t see the actual kill, so this photo is of a different lion, in the Serengeti,  where the rain had begun, and it is quite clear what it had just killed:

Survival of the fittest.

P.S. Lions feed every three or four days, and need 5-7kg of meat a day. But they can go without food for more than a week and then they gorge, eating up to 50kg of meat at a sitting – almost a quarter of their weight.

To escape the New England winter, we went to visit friends in Florida for a week. In Sarasota, lounging on the beach, I watched the brown pelicans, Pelecanus occidentalis, soaring on those astonishing wings (their wingspan is over seven feet, much the same as a bald eagle):

This one is skimming the waves, looking for fish:

and surfing

The adults have yellow heads:

I was watching the pelicans, but the seagulls were watching them too. The moment this juvenile pelican raised its beak out of the water, pouch full of fish, the seagull flew in and stood on its back.

I’m not sure if they had been aiming for the same fish, and the pelican got there first, or whether the gull was trying to steal its catch. Whichever, it failed, and flew off.

And the victorious pelican swallowed a sizable fish, whose shadow is visible through the pouch.

That ridge across the pelican’s gular pouch is the remnant of the hyoid bone. Interesting trivia factoids: (1) The pouch can hold 3 1/2 gallons of sea water. (2) The pelican has no tongue.

 

 

[This post is unavoidably scatological:  if that’s not your thing, skip over the fifth photo and cut to the video…..]

Coyotes, Canis latrans, are nocturnal or crepuscular (one of my favorite words, meaning active at dawn and dusk) so I very rarely see them. Instead, I look for evidence.  It is easier in the winter; there are foot prints:

The prints make trails: these ones had a total of 10 trails converging on (or perhaps diverging from) a single cross-roads. I have no idea why; it wasn’t scent-marked, they didn’t seem to stop, but none of them missed that spot. It might have been one coyote going backwards and forwards on five different occasions, or 5 different coyotes each on their own mission. Use your imagination.

I’m pretty sure that at least two were around. This female had marked the trail with her urine, and you can also see that she was in season:

Underneath the apple tree, it looked as though two had come together. One spot of urine was female, visible at the bottom of this picture, and another lacked blood, so I think it was a male. The two marks were on the edges of a patch of snow that was trampled down by many, many coyote imprints, as if they had been there for some time, and I like to imagine it was a tryst.

A couple of weeks later, under the same apple tree, they had been feeding extensively. There was scat everywhere, and if you can bring yourself to inspect it closely (not everyone’s cup of tea), you will see a sliver of bone, lots of hair, and chunks of undigested rotten apple from the tree above.

We think of coyotes as predators and carnivores, but actually they are omnivores, as this scat makes abundantly clear.

So although I still hadn’t seen the coyotes, they were certainly there. I put up a game camera for a couple of days to see what I got, and meanwhile I heard them yipping at 3am, from just that area. In the morning, I checked the camera videos. (Ignore the date and time on the camera, I forgot to re-set it!).

The social unit for coyotes is an adult pair, and these look like nice fat healthy ones! Eastern Coyotes are bigger than Western ones, and they can weigh up to 40lbs. If they have mated, she will give birth in about two months, and I will keep my eyes open and report back..

Incidentally, the coyote population in Maine is booming, They only moved into the state in the 1930’s, and  there are now thought to be about 12,000 of them.

*With apologies to Mark Haddon, from whose wonderful book I have stolen my title.

 

In the Ruaha National Park in Tanzania, there is virtually no surface water in early October. The rivers are still there, but they are flowing underground, so they are called sand rivers.

Elephants find places where the water is near the surface, and create mud wallows:

and they drill deep artesian wells down into the sand to reach the clean water:

This is enough to drink, or have a shower:

But for other animals it is harder. Some get all the water they need from their food, but some, including lions, need to drink. So they wait till the elephants have moved on, and use their holes:

The few rivers that used to have year-round water, especially the Great Ruaha River itself, are now regularly dry for several months each year, largely because of over-use by upstream rice farms, which were originally financed by the African Development Bank. The consequences have been dire, with a substantial decrease in populations of the larger animals such as elephant, buffalo and lion.

https://www.ecowatch.com/great-ruaha-river-tanzania-2523947047.html

This remote Ruaha-Ruangwa ecosystem has long been famous for its large elephant populations but the combined pressures of water shortages and direct human aggression have resulted in a horrifying decline. In 2009, the population was 30,000,  before plummeting to only 8,272  in 2014, a 76 percent decline over five years. The largest single cause of this is poaching. (Figures from Great Elephant Census 2014).

However, there are reasons for hope.  The 2019 survey showed a big rebound, and the population is now thought to be stable at around 20,000 (although the survey area may be sightly different which makes it hard to compare the numbers directly.).

https://newsroom.wcs.org/News-Releases/articleType/ArticleView/articleId/13470/Massive-Wildlife-Survey-in-Tanzania-Points-to-Elephant-Recovery-In-Key-Landscape.aspx

[I find that right now I have two different strands that I want to write about. There are still stories left to tell from Tanzania, but here now in Maine it is deep winter, and that is both beautiful and timely. So I think I will oscillate between the two for the time being. Today, winter prevails.]

When snow is thick on the ground, food is scarce.  The Slate-eyed Junco, Junco hyemalis,  is a tiny bird, yet it somehow survives through the long hard Maine winter.

Some food sources are easy to see, like these apples rotting away on the tree:

Others are so tiny it is hard to imagine that they provide enough food even for a junco: this one is feeding away but on what?

A large area of snow beneath two gray birch trees was covered in what looked like wood-shavings:

These are the seeds of the birch tree, whose long slender catkin has blown down in the storm, and has been swiftly dismantled by the juncos:

Each seed is minute, with tiny wings, and two little antennae:

The gray birches growing a few yards down the stream have shorter fatter catkins,

and seeds with smaller wings (this seems to be a double-yolker!) :

They gobbled these up too.

The seed is about 2mm across, and 2000 seeds weigh about one gram. The amount of nutrition in these seeds is about 5 Kcal/g, and a junco needs 28 Kcalories per day to survive in the winter, so it needs to eat more than 5g of these minute seeds, or 10,000 seeds. Of course, its diet is varied, and other foods offer more calories, but you can see why it never stops eating. To get my 1500 Kcalories a day I would need to eat 300g of these seeds, or 600,000 seeds. I think I prefer good bread, good cheese, and a glass of red wine.

Sources: 

The calorie data on birch seeds is based on white birch seeds, and is taken from Grodziński, W., & Sawicka-Kapusta, K. (1970). Energy Values of Tree-Seeds Eaten by Small Mammals. Oikos, 21(1), 52-58. doi:10.2307/3543838

The calorie data on juncos is taken from Seibert, H. (1949). Differences between Migrant and Non-Migrant Birds in Food and Water Intake at Various Temperatures and Photoperiods. The Auk, 66(2), 128-153. doi:10.2307/4080440

I am responsible for the maths!

PS How to weigh a junco, from a 2020 article in Nature on the work of Pamela Yeh:

” A dark-eyed junco being weighed: “We have a digital scale,” says Pamela Yeh. “We’ve put a bird head-first in the cup, and it’s dark in there, so he doesn’t move very much.”