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Superb sounds!!
Incredible Humpback in Blackfish Sound. OrcaLab 08 Oct 2021 22:09:00 PST |

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Superb sounds!!
Here is a sample of Inukshuk in Blackfish Sound. https://soundcloud.com/user-361819329/inukshuk-flower-island-october-3-2022?si=0e2512b0300d41b9af6af66920697cf3 October 3 2021 OrcaLab 08 Oct 2021 16:20:24 PST |

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October 1 - 7 2021 T06s,T090s, T123s,T37As Inukshuk, Argonaut, Merge, Hunter, Cutter An entire week has gone by since our last report, and what a week it has been! There were a couple of astounding events that left us in awe which we will describe in more detail. Above all, in reviewing the notes, the daysÕ rhythms revealed the abundance of life in and around this area that is our privilege to be near. Each night of this week followed somewhat similar patterns. Around 7:30pm, sometimes a little earlier, sometimes later, and as the evening skies darkened, humpbacks began to call. We have no idea if it is always the same individual or a small set of individuals. Conventional wisdom suggests that it is only the males who are involved. Often the calls start off as groans, ÒwhupsÓ, creaks and grunts and develop over time into full song (or as Emily dubbed them Òsing songyÓ). These efforts often last from minutes to the more usual duration of hours. All but on a few occasions the sessions are in Blackfish Sound. What has astounded us is the number of ÒbubbleÓ feeding at night. We have not seen or heard much of this feeding behaviour during the day (once, perhaps twice) all season long. It seems to begin as soon as the lights are turned off. It can be very dramatic, really an explosion of bubbles, followed by a few calls and heavy water movement. Speaking recently with Janie Wray, of the North Coast Cetacean Society, who studies humpbacks near Fin Island, we learned that she too has noted the bubble feeding at night - something which she had not previously experienced. Here we are, and so too different humpbacks, 350 kilometre away and the activity is presenting as the same. What similar conditions have stimulated these parallel efforts? Boat noise, sadly, is part of the night as well. We are located in a major transportation corridor. Tugs, fish boats, cruise ships (yes, still the occasional one), ferry boats, small coastal freighters, articulated tugs, log barges use the related routes to move along the coast.There can be a lot of noise. Some boats are better than others depending on age, propulsion systems, and speed but in the end they all create noise and the humpbacks are sensitive to their presence and will most often break off their vocal engagements in the presence of boats. It is never the same after the boat has departed. There are exceptions to the rule. Once and a while a stalwart humpback will continue calling despite these intrusions. The humpbacks will often continue as day breaks and they are not always silent during the day. We faithfully record near every sound we hear. October 3 was such a day. The early hours had not been spectacular in terms of humpback vocal activity. Rather, distant BiggÕs orcas in Johnstone Strait occupied the recording from 2:15am till 2:52am. Daytime brought low clouds, rain and mist into the Pass. One BiggÕs orca was spotted briefly before being enveloped in fog at 7:28am. Two humpbacks had also been spotted during this short mistfree window. At 8:18am, a humpback in Blackfish Sound began to call and we began a recording. The calls developed quickly into very pretty sequences then ÒbubblesÓ at 8:29am. A speedboat momentarily intruded and the calls subsided but then continued as did the boat. The calls became interesting and we decided to have a look around using the Flower Island remote camera. As the beautiful calls continued we identified Inukshuk (BCZ0339) from his distinctive fluke not far from Flower Island. This was the beginning of a rare chance to identify an individual male while vocalising. A quick scan produced no other blows in Blackfish Sound although Argonaut (also a male) was identified along with Merge further east in Blackney Pass. With the camera continuing to follow Inukshuk we noticed him undulating on the surface as he vocalised, some of his calls had been quite ÒstrainedÓ and then shortly after became more distant. Meanwhile, Argonaut and Merge were still busily engaged with each other in Blackney Pass when at 10:51am there was a possible BiggÕs call in Johnstone Strait. Jared Towers had been informed that there was a group of BiggÕs in Robson Bight and that they were headed east. Just possibly this was the same group to which the young male seen in Blackney two hours previously belonged. This day was going to be a very interesting one! A fourth humpback, Hunter, was in Blackney Pass now heading north into Blackfish Sound closer to Hanson Island. The BiggÕs orcas had now arrived off Strider Beach and we were able to follow them from 11:25am for a short while as they continued east close to Vancouver Island. Quite suddenly the humpback calls became very loud in Blackfish Sound. Inukshuk had moved into the bay adjacent to Flower Island where the hydrophone is located. It was simply amazing to follow him so close to shore. He seemed larger than life and the details were great from his extended pectoral fin slapping the water, to his massive head, and gentle tail brushing the surface. He went back and forth before moving out and away. His voice was so impressive even as it faded gradually by 12:48pm. Inukshuk was done but the day was not. Jared had caught up with the BiggÕs off Naka Creek before 2:28pm. He not only identified the eastbound BiggÕs (the T123s and T037As) but also the T060s, T090s and all of the T002s who in his words Ôblew through the other group at 10 knotsÓ westbound. They were on a mission to get somewhere. By 3pm, Quin and Emily doing service at the Main Rubbing Beach saw them coming west in the distance. They passed them and Strider Beach mid strait and carried on up the Strait seemingly unperturbed by the three boats following their progress. By 4:20pm they were east of Izumi and shortly afterwards crossed the entrance to Blackney Pass. The T060s were leading and showed no interest in coming into Blacky Pass. Backtracking a bit, late in the afternoon on October 1, the T060s and T090s had come through Blackney Pass headed for Johnstone Strait. Then too they were relaxed but determined. They showed no interest in the many sea lions both in the water and on the rock. The sea lions sensing no danger did not react. Perhaps, this group found food elsewhere and accounted for the calls heard later that same evening. October 3 concluded with more humpback vocals predictably from just past 7pm to almost midnight. The expected repeated pattern did not disappoint. So what about the rest of the week? On October 4 Inukshuk was seen again while vocalising in the afternoon. Not quite the spectacular show of the day before but incredible evidence regardless. Much of our day is consumed by watching the Sea Lions hauled out on the 6-7 rocks nearby. We do a daily count and recently their numbers have grown to around 100. There are big males, juvenile males, females and even young babies. They leave the rocks at high tide and return as the tide begins to drop. In between time is spent fishing for salmon, cod and octopus. They are pretty eclectic in their tastes. While in the water they are vulnerable to BiggÕs attacks. While on the rocks they are vulnerable to the curiosity of passersby in boats. On October 5, a boat came in close to their haul out. It happens often. Sometimes it spooks them off the rocks. It only takes one nervous individual to spark an evacuation. It sometimes takes hours for them to return and resume their rest. Heavy boat noise through October 6 discouraged sustained calls but through the night the humpback(s) in Blackfish Sound were busy feeding. Growls, grunts and a few calls then more grunts and growls were common. Just before 7am, water movements and bubble bursts signalled serious feeding in Blackfish Sound. Satisfied grunts continued until after 8am. The rest of the day followed. A beautiful sunset preceded another night filled with humpback sounds that became earnest around 10:47pm and lasted until 11:07pm. It was a beautiful boat free recording. There were more bubbles too, and then before midnight BiggÕs calls resounded again in Johnstone Strait. As they moved east they continued to call up until 12:47am. By then, although seemingly spread out, the majority had passed the Ecological Reserve. Then came the humpbacks again at 2:18am. During this recording we became aware that three separated individuals were involved. One humpback was in Blackfish, another in Johnstone Strait and one nearer Parson Island. Although the Parson hydrophone covers some of Johnstone Strait it was clear that this individual was quite different from the one further away somewhere in the Strait. The Blackfish Sound individual was also an entity unto himself. In the end, the Blackfish Sound humpback had the last word. The recording ended just before 7am. As a final note for this summary, Quin took Megan, Mattis and Emily to Cracroft Point during the day on October 7th to reinstall the windmill to help maintain healthy power there through the winter. Their day had been very long with weather colder and the wind more bracing. They returned satisfied and happy with their efforts. Perhaps the humpbacks were tuckered out too? The evening was unusually quiet until past midnight. It had been a great week, from the return of Mattis, a trip for Megan to Vancouver to view Gloria PancraziÕs film, ÒCoextinctionÓ, a quick trip to Courtenay for Paul and Helena to the amazing whales and other ocean beings from dawn to dusk. And to top it all off, the first snow appeared on Mount Derby. OrcaLab 08 Oct 2021 15:50:40 PST |
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