Missing eggs?

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SMJohnson
Posts: 146
Joined: Wed Feb 19, 2014 11:06 am
Location: IA/Ottumwa

Nest check on May 16 found Troyer horizontal gourd with 5 recently laid eggs.
May 25 check showed eggs missing with no evidence, egg chips. At that time
had no predator guard. Immediate suspicion could be snake attack. Many
indications would lead to believe that was not the case. Indicators, no snake
found in any of 8 gourds on rack, wide open closely mowed grass beneath
rack system, none of the 5 or 6 pairs that were nesting in rack system seemed
to be at all disturbed, and ASY pair was committed to that particular gourd
including now having it packed with green leafs. I now have all 12 poles
protected with predator guards. I realize a snake attack could occur and
not be aware. I believe eggs will be laid in that gourd soon, by what I believe
to be pair present when eggs went missing. My question is I've been told
that the parents can know when eggs are infertile and remove them and
then renest. I'm looking for input on what others might know regarding
this possibility.
2012-13 pair..........2017- -93 pair
2013-52 pair..........2018- -87 pair
2014-65 pair..........2019-102 pair
2015-85 pair..........2020-109 pair
2016-80 pair..........2021-???

2021 Offering 180 Nesting Cavities
64 Troyer Horizontal Gourds
64 Troyer Vertical Gourds
2 T14'S - 28 Compartments
3 SMJ8'S - 24 Compartments
Chuck4
Posts: 861
Joined: Mon May 16, 2011 10:05 am
Location: North MS
Martin Colony History: I started trying to attract Purple Martins in 2011. I got my first breeding pair in 2013.

2013-1 pair, 2014-4 pair, 2015-8 pair, 2016-12 pair 60 babies :-).

Based on everything I've seen posted here, it sounds like a snake may have gotten the eggs. I had a pair last year that had a batch of eggs which didn't hatch. They moved over to the next gourd and built a new nest and had a second clutch.
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DornCounty
Posts: 2172
Joined: Tue Feb 14, 2012 3:58 pm
Location: Rural SE Kansas
Martin Colony History: .
.
Trio-Jedi

I currently have many martins ejecting eggs that have gone bad.

If the eggs were around during the prolonged cold spell that is a possibility.

HOuse sparrows are also likely
2017 - Home & Public Colonies - 300 Cavities
malachy cleary
Posts: 70
Joined: Wed Feb 25, 2004 8:01 pm
Location: cold spring n.y.
Martin Colony History: First breeding pair in 2011. Site moved up hill 350 feet at beginning of nesting season
2019 to accommodate road construction.
Colony seems to have weathered the upheaval

I'll
Be damned. Same thing happened to me. A Troyer Horizintal gourd with
6 eggs,Conley 2 entrance, mud, leaves, straw in the nest WITH a big
Climbing predator guard....vanished. No eggs on ground, no chips. All other
Nests in order on the T-14. ???. Weird. Thoughts?
SMJohnson
Posts: 146
Joined: Wed Feb 19, 2014 11:06 am
Location: IA/Ottumwa

Any other opinions?
2012-13 pair..........2017- -93 pair
2013-52 pair..........2018- -87 pair
2014-65 pair..........2019-102 pair
2015-85 pair..........2020-109 pair
2016-80 pair..........2021-???

2021 Offering 180 Nesting Cavities
64 Troyer Horizontal Gourds
64 Troyer Vertical Gourds
2 T14'S - 28 Compartments
3 SMJ8'S - 24 Compartments
Gary Berger
Posts: 6
Joined: Mon Mar 09, 2015 12:17 pm
Location: TX/Houston

If you have single SY males, they will definitely take eggs and days old nestlings.
tonyg
Posts: 1520
Joined: Fri Feb 27, 2009 4:16 pm
Location: Olpe, KS
Martin Colony History: 22 year landlord, 14 at current residence..offering 9 racks and a homemade T-8 for 166 total cavities. 160 Pair in 2018 Racks consist of a Deluxe 12, AAA 16, Starburst 16, 2 K-18 Series, Super 24, 2 Gemini, Multi-purpose/two trio’s/4gourds and a T-8..Great hobby to be involved in..

Had 2 gourds, one with 5 eggs, the other with 6..five days after nest check all were gone...my guess is SY's wrecking havoc..damn things!!!
22 year landlord..9 Rack Systems for 2018 and my home built T-8 for a total of 166 cavities..160 pair in 2018 ..SUPER COLONY!!! Love You Bev... Fan of those St. Louis Cardinals!!!!!
cary-nw-fla
Posts: 131
Joined: Tue Apr 05, 2011 12:27 pm
Location: Holt, Florida

My guess would be SY's or removal of bad eggs. Have had eggs disappear the same way and have netting up. Snakes have been my biggest problem & every time I always found the snake in another gourd on the rack. Why would he leave the buffet??
2010/2011: 0 / 2012: 8 Pair / 2013: 22 Pair / 2014: 35 Pair / 2015: 39 Pair / 2016: 73 Pair / 2017: 94 Pair
Cary
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