Originally posted by Aslyfox very grateful you are sharing your knowledge and your photos
speaking as the OP, I have received info on the breathing/diving patterns of grey whales:
" the spout of a grey whale may rise to 12 feet and is visible for miles. Normally, greys take 2 - 5 breaths at approximately 15 - 20 second intravals ; then dive for 3 t0 5 minutes . To aid in deep dives, the flukes, (tail) is often raised after the last breath in the series. An extended deep dive usually lasts 8 - 10 minutes then the breathing pattern repeats"
also sky hopping and breeching is described.
any such info on other whales - blue, fin, hump back, Ocras ( Killer Whales ) and more photos would be greatly appreciated.
breathing and diving patterns
do they sky hop
do they breech
other than humpbacks, do any other whales " bubble feed " ?
Well, first, I have no ~direct~ experience (and only some indirect "experience" from videos, photos, and the written word) on gray whales. My only direct experience has been with whales off New England (and there are no grays except for those in the North Pacific Ocean). My most ~direct~ experience has been with humpback whales (most of all), with finback whales and minke whales (secondary to humpbacks), with right whales (only limited experience since 1986 and 1987), with sei whales (seen once in a while, but generally only in certain years), and with blue whales and orcas (both seen only rarely close to shore in this "neighborhood").
Spouts of humpbacks are pretty similar to what you described for grays, while finbacks and blues make taller (maybe 20 feet) and narrower spouts, I would say. While all baleen whales do have two blowholes, most baleen whales make single spouts as the two exhaled airstreams merge under most conditions -- two exceptions to this generality are found with right and bowhead whales, where the two nostrils are a bit further apart and maybe angled outward a bit, so that they do usually make double spouts (I don't know if you might possibly see rights off of Baja or not, while bowheads are only in Arctic waters). Minke whales are small enough that their (single) spouts are quite faint except in colder weather.
The number of spouts and the frequency of spouting varies a lot, regardless of species, and this is true for all species, so that the spouting info you quoted might be somewhat "typical" for many species under certain conditions, but will actually vary a lot for any species, depending upon what any given individual whale is doing at the time.
Spy hopping does occur in many species of large whales -- I have seen it most in humpbacks when they approach whale watch boats to do some "people watching".
I would say that breaching is probably most common in humpbacks, fairly common in grays and in rights, less common in minkes, and rare in blues, finbacks, and seis.
Humpback whale breaching -
Tail breaching and lob tailing (which are separate behaviors) are fairly common in humpbacks, but can be seen in rights and (I believe) in grays, and are rare in the others (in my experience).
Speaking of tails, humpbacks and rights often (but not always) lift their tail flukes in the air when making a terminal dive, and blues sometimes do this as well, but finbacks, seis, and minkes only rarely do so.
Flippering is seen frequently in humpbacks, sometimes in rights, but is rare for several of the other species. [Dunno about flippering in grays.]
Feeding varies a lot from species to species, and this also varies greatly depending on what the prey species are. Rights and seis feed on small zooplankton by slow "skim feeding" at or just below the surface, but most other species employ more active feeding styles to corral and engulf their very mobile larger prey. Humpbacks, finbacks, and minkes feed on small schooling fishes when available or on krill when available, and the feeding behavior is usually quite an active behavior, but does vary a lot in the specific techniques employed depending on the nature of the prey.
Here in Massachusetts Bay, "our" humpbacks, feeding on schools of small fishes (most commonly sand lance), commonly use bubble net feeding, bubble cloud feeding, and fluke kick feeding, surfacing frequently as they drive the prey to the surface, at least when the prey are fairly close to the surface, but feed more "out of sight" when the prey are deeper (surfacing only to breathe) -- Massachusetts finbacks and minkes don't usually bother with such "tricks'" as humpbacks use -- since finbacks and minkes are a lot faster, they basically outrun their prey, lunging at concentrations of them, and they may sometimes be seen swimming in large circular patterns when corralling their prey.
Blue whales feed almost exclusively on krill (which humpbacks, finbacks, and minkes may also do when krill is available), and the feeding behavior used with krill often involves lunging at swarms of the krill.
Humpbacks, finbacks, blues, and minkes all have extensive throat grooves or pleats on their "neck" areas that greatly expand when engulfing large quantities of prey (fish or krill) and the water the prey is swimming in, before forcing the water out through the baleen plates "strainer" so that they can swallow the fish or krill. Grays have just a few of these grooves, so this is less obvious when they feed. Right whales have none of these grooves, so that their plankton feeding is a more "subtle" behavior.
There are many behaviors to be seen on whale watches, but one never sees them all on any one trip. Furthermore, whales are not always active -- on some whale watch trips, whales may be seen resting or logging (actually seemingly sleeping at the surface, sort of like logs floating just at the surface) (interesting, but not for too long - LOL) -- on some trips whales may be seen traveling, which is more active than resting or logging, but not as varied or as interesting perhaps as some of their more active behaviors.