Remember the Green-breasted Mango that found its way to Beloit, Wisconsin? It was captured Monday and taken to the Wisconsin Humane Society's Wildlife Rehabilitation Center in Milwaukee.
Local birdwatchers who kept tabs on the bird decided to rescue it before a cold front moved into the area Monday evening.
Scott Diehl, manager of the rehab center, said the bird is doing well. It's housed in a screened-off area with feeders and perches and is being fed sugar water and a "nutritionally complete nectar" that zoos feed captive hummingbirds.
The mango most likely will be taken to the Brookfield Zoo in Chicago. The zoo has an accredited aviary that Diehl called a "rich environment" for birds.
The capture has sparked a debate on Humnet, an email listserv, about the legalities and ethics of capturing hummingbirds. I asked Diehl for his thoughts on the matter. He said the capture was legal because the Green-breasted Mango is not protected by the Migratory Bird Treaty Act. A U.S. Fish and Wildlife Service official who handles wildlife permit requests told him that no permit was needed to take the bird into captivity.
Diehl calls the situation "an animal welfare issue." Had the mango been left alone in the wild, "there's no reasonable expectation that it would get back to where it came from," and it would have died. The hummingbird is native to Mexico and Central America. Stepping in to save it from the cold, he says, was the humane thing to do.
We'll likely learn more about the mango in the next few days, so stay tuned. — M.M.
In terms of whether or not this is an issue of conservation or a move to save a birds life, it is clearly an act to save a bird's life. Whether or not that was the "correct" thing to do is a personal opinion, really. But in terms of conservation for this species and for tropical hummingbirds, this capture does nothing. As Nathan wrote, most migrants die. More than that, migrants that drift a thousand miles outside of their usual range, die.
So getting back to what I originally said, they did not offer a benefit to the conservation of hummingbirds. They saved this birds life, and will put it on display at a zoo. Thousands of people will walk by the display and say "wow, that is a pretty bird" just like all of the birds at the exhibit. They will leave, and forget about the green breasted mango who drifted too far. Conservation goes far beyond the displays of zoos and even further beyond the help rehabilitation centers give. They should have let the bird be.
Posted by: conbiomajor | November 16, 2007 at 09:49 AM
Even if not covered by the treaty, I think this is likely a case where the "letter of the law" and the "spirit of the law" could be at odds. At any rate, I'd sympathize much more with the action taken IF the bird was to be released to the wild upon springtime arrival -- even though the Zoo may offer excellent facilities, and the bird's lifetime may actually be extended in captivity over what it would be in the wild, there remains something troubling about taking a creature just because basically it was 'easy-pickins.' I'm sure all involved though, are using the best judgment as they see fit, and both sides have some good arguments.
Posted by: cyberthrush | November 08, 2007 at 01:43 PM
The bird is not covered by the treaty. We checked.
Posted by: Matt Mendenhall | November 08, 2007 at 11:10 AM
The Mango is (or will be, depending on when the regulations take effect) covered by the MBTA - the new list of covered birds, published for review in 2006, includes the Green-breasted Mango.
http://www.fws.gov/migratorybirds/fedreg/regs07/Part%2010%20list%20-%20proposed.pdf
I would have thought that a publication like this would have checked that fact, and followed up on it with USFWS.
Posted by: dbackjon | November 08, 2007 at 10:38 AM
Humnet is definitely the place to go to find out about this, but I tend to agree with the sentiment there that this was a bad idea.
Sure this one likely would not have made it, but we don't know that for sure. To answer cyberthrush's questions it seems that it may have been illegal to capture the bird as it was not injured in any way. No word on what they're going to do with it once it gets to the zoo.
I know we all like birds and hope for their welfare, but birds die all the time. Actually, most vagrants end up dieing, that's just the way it is. Capturing this one and preventing nature from taking its course does nothing for the population of Green-breasted Mangos as a whole. And it's welfare of populations of birds that the real emphasis should be on. I sort of hope this rehabber has some legal ramifications coming their way, this isn't the sort of thing that should be encouraged.
Posted by: Nathan | November 08, 2007 at 08:52 AM
I am glad they captured the Mango. We have been calling him the "Little Green Ambassador to Birds" because of all the attention he has brought to birds, birding, and most importantly, conservation.
At the Brookfield Zoo he will garner lots more attention and surely enlighten new birder-conservationists. Pretty much a no-brainer when faced with the alternative...
Posted by: Birdfreak | November 08, 2007 at 08:14 AM
This seems like quite an unusual step to take -- at least I've not heard of it occurring with other "vagrant" hummers that weren't outright injured or unhealthy. Can someone say if there are other precedents for capturing such a hummer 'for its own good' as it were, with no injury was present? Also, would the potential Zoo stay be permanent or temporary until the return of warm weather (and release)? -- And apologies in advance, if these questions have already been answered over at Humnet or elsewhere...
Posted by: cyberthrush | November 07, 2007 at 08:55 PM