The first thing I would check, Terri, is whether they are chickadee E's. Chickadees have very tiny eggs, but the nest is made of moss and should not be confused with the grass & feather nests of TRES's. Kent Hall Stevens Point Portage Co. ----- Original Message ----- From: "Terri Welisek" <terriw@xxxxxxxxxx> To: "'Wisbirdn'" <wisbirdn@xxxxxxxxxxxxx> Sent: Monday, May 17, 2010 7:50 AM Subject: [wisb] tiny eggs id help needed >A pair of tree swallows are believed to be nesting in a bluebird box in Mt > Calvary, WI, FondDuLac County. The nest is lined with feathers. There are > 3 > white eggs. But here's where the id goes weird. The eggs are sooooo tiny > like the size of hummingbird eggs. I was certain my friend had put jelly > belly beans in there as a joke. But no. What causes an egg to be so > malformed? Or is there another cavity nester that has taken over the site? > > > Good Birding, > > > > Terri Welisek > > Sherwood, WI > > Calumet County > > > > > > #################### > You received this email because you are subscribed to the Wisconsin > Birding Network (Wisbirdn). > To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: > //www.freelists.org/list/wisbirdn. > To set DIGEST or VACATION modes, use the Wisbirdn web interface at: > //www.freelists.org/list/wisbirdn. > Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn. > > > #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn. Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn.