5574-R4_ML&P_LSLA_2018_Web_SummerNewsletter_Web

It is thought that chicks will begin returning to their natal lake three to four years after birth, and then begin reproductive years at about three to four years after that. My observations would support that assumption as for the two to three years pre-2017, I observed one single loon frequently socializing with the three pair that I most frequently watch in the bay where I live. This year that unattached adult likely reached his mating maturity and attempted to displace male loons, and any chicks in residence, at prime nesting sites in order to claim both the site and the female resident there. Maine Audubon had reported eight chicks hatched on Little Sebago in 2009. I have no records to verify how many of those eight survived their first season on the lake, but assuming a 50% 1st year survival rate and then a 50% at sea survival rate for the next few years, we could likely have expected two of the 2009 hatchlings to be here and of breeding age during the 2016 to 2017 reproductive seasons. It appears that may well be what happened. The Lake Association shall continue to provide floating nest rafts in unoccupied areas as potential nest sites for new breeding pairs, with hope that new sites may support more breeding pair. Survival of the fittest reigned in loon land on Little Sebago last year. While it was terribly sad to lose the two chicks, it was somewhat heartening that it was a natural occurrence rather than an occurrence caused by man’s sin against nature. It is also important to recognize that because of the interest and observations of our lake folk, we were able to reconcile these deaths and provide the bodies to biologist for lead and mercury testing. This was a prime example of our lake community working together for loon preservation. Every observation teaches us something, and every recovered loss provides valuable testing materials for scientific evaluation. Tests evaluate not only the biology of the deceased loon, but indirectly

speak to the overall quality of the lake water and the ecosystem. Clean, clear water is ideal for successful loon survival - as of course it is to human enjoyment as well. The goal for summer 2018 is to keep better track of non-mating loons on the lake. In 2014 there were 6 chicks hatched and in 2015 another 5 chicks hatched that survived their first season on Little Sebago. Assuming 50% have survived their time at sea as well, we should expect to see two or three returning to the lake between 2018 and 2019. These chicks are not yet of mating age and thus not yet a territorial threat, but their presence needs be noted. Loons are a social species, so non-breeding age loons are likely to hang out with one of our resident pairs much of the time. Most of our returning adults can be identified by leg bands of distinguishing colors. I encourage you all to follow the Little Sebago Lake Face Book page where you can watch for my weekly loon updates as well as contribute any observations or questions you may have. I also beseech one and all to be respectful of all non- human inhabitants of the lake. Observing the 200 foot no wake zone, both on the mainland and on the islands, is essential for preventing shoreland erosion, and for protecting the shoreland nests from being washed into the lake by boat wake. Please also steer clear of private islands, especially those posted with “Loon Nesting Sanctuary” signs, where even paddle boaters and swimmers are asked to observe a 200-foot set back so as not to disturb an active nest. Let us all enjoy Little Sebago Lake as our summer playland, and as home to our resident loons.

Sharon Young Email: syoung0252@gmail.com or text: 207-632-0075

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