I can add Green Woodpecker Picus viridis to the Swedish list, as I heard one yesterday.
Also, I can add the story about the banding station now, as I know what policy changes the Yamashina Institute for Ornithology has implemented now.
I visited Fukushimagata Banding station, north of Niigata, for about one week in October last year, during a small migration peak. The bander in charge for most of this time was K-san (1), and there were three other Japanese banders, as well as one French guy with whom I was travelling around, and then me. Between us, we had about 150 nets in reed beds, divided into three sections: "Tape" where there were tape recorders with bird sounds, "Control" which was the standardised capture area, and "Non-control" which was just extra padding to get as much as possible. During some nights, we also had duck nets up to catch ducks.
One day, it was apparent that we had too many nets, and caught too many birds. The first net round (2) was about 5:30, and already then we had more birds in our bags than we could handle until it was time to empty the nets again. We then prolonged the interval between net rounds to one hour, and tried to do as much as possible. The birds we hadn't finished processing (3) were left hanging on a specially built rack until after the next round.
Already then, I commented that we should close some of the "extra padding" nets, as we should try to avoid having birds in these bags longer than necessary. This comment was ignored (4).
The day continued like that. Every single net round we had too many birds to handle, and every processing time was extended from 30 minutes to 45, to 60, and eventually to 90 minutes. Consider, then, that it usually took about 20-30 minutes to empty the nets, and you will arrive at the conclusion that some birds, which are caught just after a particular net is emptied, may be hanging there for as long as 2 hours --- or even more, depending on if the nets are emptied from the same direction every time! Add to this that they may then have to be in a cloth bag indoors for another 90 minutes, unless they are among those that are left for the next round, which means a total of at least 4 hours in captivity during the time when passerines are supposed to eat constantly to be able to survive migration. Indeed, we had a Teal Anas crecca that was caught during the first round but wasn't banded until three in the afternoon, at least nine hours after it was initially caught!
This is bad as it is, but it is about to get worse.
Reed Bunting Emberiza schoeniclus is a species that's usually no problems in Europe. They are quite calm and relaxed in the hand, although not as pleasant as smaller warblers, wrens, or swallows. In Japan, however, they are vicious fighters. The general rule is never to have more than one bird of any kind in a bird bag, unless there are more birds than bags, in which case some birds (particularly Black-faced Bunting Emberiza spodocephala ssp.) may be put in bags where there are already birds. Reed Bunting is never ever to go more than one into the same bag.
However, this day, we used up all bags. This was partly because we had so many birds, but also because an increasing number of bags were locked up inside the lab between rounds every hour. Thus, K-san decided that we were to put more than one bird into bags, as long as we didn't put different species. This included Reed Buntings, which meant that we eventually got bags with three, four, up to eight Reed Buntings.
At about 9 AM, F-san, the French guy, called my attention to the fact that of the Reed Buntings he was banding, approximately 80% were bloody in the face. This is because they fight in the bags, and usually the strongest one pecks the others in the face to establish some kind of hierarchy. I believe mice do the same by barbering the others' whiskers. We were also seeing the small pile of dead birds found in the bags grow with every round. I tried again to tell them to close the nets and focus on the control and tape nets, but no one listened.
At about eleven, maybe half our bags were filled with birds when we left the lab, having extended the last interval between rounds to almost 90 minutes. In the nets, we still had as many birds as we usually get during a whole day on non-peak days, and it was obviously too much, but we all knew that at around noon, the migration usually stops, and we catch less birds in the afternoon. Nevertheless, I had a large argument with Y-san about closing nets and how I was willing to stay behind and do so this time while they processed the other birds. She promised to refer my request to K-san, who would have to take the final decision. K-san ignored it, and this horrible day went on for another hour.
At noon, we had had 13 dead birds in bags. They died a death filled with stress, violence, and pressure. All (or at least most) came from bags which were too filled with birds, birds that were fighting with each other constantly. Add to this that the sheer volume of birds, coupled with the use of pins on a rack to hang the bags from, caused the innermost bird bags to be pressed down by all the other bags, leading to stress, suffocation, and panic.
This was when F-san told me something I hadn't known, as I was working with the tape nets that day: there was a cat in the non-control nets. Now, the nets are usually quite high up, as the banding station is in an urban area where you might expect cats. Nevertheless, cats can be cruel animals, and when they know that there is an easy way to get birds to play with and/or eat, they will try to get them. Every round, the banders at the non-control nets had to pick heads, wings, legs, or half birds from the nets, because cats do not necessarily stop when they don't need to eat any more.
This time, I managed to get K-san alone, and told him that this doesn't work anymore, and that if he doesn't give the order to close the nets, I would do it myself, and simply release everything that was in them. His response was what finally pushed me over the border into pure anger: "But we have more bags...". To K-san, the well-being of the birds was not important; it was the prestige in having caught and banded a lot of birds that was important. I took to shouting at him, showing him the 13 dead birds, and asking how many birds he wanted to kill before he realised that we had to close the nets. This finally sunk in, and at 1 PM, he and I went and closed all the control and non-control nets, leaving only the tape nets open.
Net result:
- 13 dead birds in bags
- An unknown number of birds killed by the cat
- An unknown but likely very high number of birds subsequently killed by stress or by the injuries they obtained from fighting in the bags
- An unknown number of birds killed by being in the bags so long that they didn't have sufficient time to feed
- The realisation in K-san that it is possible to close nets (we did so the other days after that when needed)
Horrible as this was (5), there is more to come. All through this day, and the days that followed it, F-san and I tried to come up with ways to make the whole procedure more efficient and less harmful to the birds. There were some lines in the ceiling where I started putting bags with the more numerous species so they wouldn't be crushed on the rack. We tried to implement throwing the bird bags on the floor when they were empty so that I could more easily see when someone needed new birds. I tried to tell them to sort the birds by the nets, as sorting them in the lab takes about 10 minutes of what is essentially dead time. I tried to convince them to always start with the more numerous birds to get the weight on the rack down as quickly as possible.
All these suggestions were either ignored or declined. This caused me, on my arrival to Thailand when I once again had regular access to the Internet, to send a mail to the Yamashina Institute, expressing my outrage that the banding station where all young banding students go to learn banding could be run in this fashion. I heard nothing, until last week, when I got a mail from the boss of the banding and bird migration study department at Yamashina, O-san, who said that they had had a series of meetings because of this mail, and tried to figure out what had happened and how this could be prevented from happening in the future.
Yesterday, I got the document detailing the changes they are going to implement. It is a very good list of things (even if I had some further suggestions), and I am pleased to say that it is now official policy of the Yamashina Institute, and by extension all banders in Japan, to close nets when there are too many birds to handle. It is also now official policy that "The priority is the safety and well-being of birds", which was not the case before. There are also some other more technical aspects (how to deal with predators, how to handle pneumatization scoring, how to handle some very fragile birds like the Long-tailed Rosefinch Uragus sibiricus, and so on), but I think those two are the most important changes.
I am not against bragging about achievements, so I will say that it feels nice to be ultimately responsible for this policy change. O-san explicitly states in one of his mails that if it were not to my mail and detailing of the situation, these meetings would never have occurred, and, by extension, the policy of the Yamashina Institute would not be that safety and well-being of birds is the foremost priority. So sometimes it can actually pay off to complaint!
So, there: long post over.
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(1) I will not mention any names.
(2) That is, the time when everyone goes out to empty the nets; usually once every 30 minutes in Japan, but may be once every 15 minutes or once every hour in other places. Personally, I have fluid rounds and empty my nets whenever I am finished with the old catch. This is because I target singing males in their territories, and can expect to get only about 5-10 birds per day.
(3) At Fukushimagata: determine species, band it, age it, sex it, check skull pneumatization, release. Elsewhere, wing length, total length, weight, fat, moult, iris colour, tarsal length (inner and outer), toe length, and photo documentation are used. At Tori-no-Umi, all of these measurements were taken for all caught birds (mainly ducks and waders).
(4) Though, in all fairness, it should be pointed out that of the four, later five, Japanese banders there at the time, only two spoke English, and I don't know to what extent the other two understood very much of it. K-san, who was the bander in charge, and Y-san, who works for the Yamashina Institute, however, both knew English, so this is not a sufficient excuse.
(5) And I know F-san on several occasions felt he needed to leave the room, because the sound of the panicking and fighting birds in the bags was immense, not to mention revolting.