It's nearly two weeks since Greta hatched her eggs at the   Central Park Reservoir.
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But, not all of her five eggs hatched and so Greta continued   to dutifully sit on her nest, presumably in hopes the last one finally   would. 
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She sat on the nest an additionally two days with her already   hatched babies tucked neatly under her wings while her mate,   Hansel, stayed devotedly by her side.
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But by Monday morning, it was clear that the last egg was   unviable. Perhaps due to the delay in quickly moving from the   nest or suddenly cooler weather, one of Greta's new hatchlings   also didn't make it. 
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But she and Hansel still had three little healthy balls   of yellow fluff to attend to. 
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There is little time in the animal world to mourn what   was not meant to be. The family had to quickly recover from loss   and move on. 
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Since that time, an interesting development has taken place.   
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As previously noted, there was already another goose family at   the Reservoir. 
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John and Mary had hatched their three goslings a week before   those of Hansel and Greta came into this world. 
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Typically, John and Mary nest and stay to the north west part   of the Reservoir while Hansel and Greta nest and claim the entire east side   of it. 
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But, since the arrival of Hansel and Greta's new bundles of   joy, John and Mary brazenly  moved to the east side with their quickly   growing goslings!
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When first observing this, I was both, surprised   and concerned -- expecting a long, drawn out battle between the two   ganders over territorial claim as what occurred last year. 
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But, unlike last year when Mary's nest was destroyed along   with the all eggs in it, this year she too, successfully nested and   apparently the presence of goslings makes a huge difference in terms of   acceptance by another goose family.
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Not only have Hansel and Great accepted the "older"   family into their territory, but they actually appear to welcome   them!  
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Both families are typically found along the east side of the   Reservoir, peacefully getting along and often staying quite close to each   other. 
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While not certain, I am guessing such acceptance and   cooperation is to add measure of security to their situations. As in   humans, goose families apparently like to stay together and share in the   raising of babies. Additionally, the ganders share in responsibility for   defending the territory and chasing away interlopers. 
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Speaking of "family," I had previously speculated in past   years that Mary and Greta might actually be sisters. 
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Since female geese choose the nesting sites and since geese   typically return to the general areas they themselves hatched, such   speculation was not particularly far out. 
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I am now convinced the two geese are sisters. They might in   fact be part of the offspring of "Mama and Papa" the original goose   parents I observed at Turtle Pond in Central Park during the spring and summer   of 2010. 
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From the get-go, the goslings of Mama and Papa became very   acclimated to people and there is no question that both, Mary and Greta are   extremely social with and used to humans. Greta even chose for   her nesting site, the most visible and human accessed point of the   whole Reservoir -- close to the East 90th Street public   entrance!
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Sadly, Mama and Papa have both passed on in   recent years. 
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But, at least two of their offspring apparently survive   to raise their own babies and carry on the legacy. 
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This spring in Central Park has been particularly bountiful   for geese. Unlike past years, it appears that not all eggs were   oiled and/or nests deliberately destroyed by either Geese Police or   park personnel. 
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There is also a new family of geese at the Boat Lake in   Central Park -- a goose pair with seven goslings!
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It has indeed been a bountiful spring in Central Park this   year with at least 13 new goslings. 
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Compared to last year when there were only three   goslings in the entire 843 acre park and the previous year when   only two survived, this year is definitely "feast" rather than famine.   
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Mama and Papa somewhere in goose heaven, are, I am   confident, looking down and smiling.   -- PCA
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