See also. 1  Bruise, which is a hematoma caused by trauma. 2  Petechia, which is a small type of hematoma (<3mm) 3  Ecchymosis, which is a large type of hematoma (>1 cm)  Purpura secondary to clotting 1  disorders. Purpura haemorrhagica in horses.  Pigmented purpuric 1  dermatosis. Schamberg disease (progressive pigmentary purpura)  UCSF Purpura Module (PDF).
The female incubates three to four glossy, light blue eggs for 12 to 14 days. The young leave the nest after 14 to 16 days and continue to be cared for by the parents for up to four weeks. Robins have two and sometimes three clutches of eggs each year.Nests may be used for multiple clutches; first-clutch nests may be built on top of nests from the previous year.he female incubates three to four glossy, light blue eggs for 12 to 14 days. The young leave the nest after 14 to 16 days and continue to be cared for by the parents for up to four weeks. Robins have two and sometimes three clutches of eggs each year.
The fruit they eat contains seeds, which robins may drop in other places. The breeding season for robins is from April through July. When the female finds a partner, she begins to build a nest with the male's help. The nest is cup-shaped and made from grasses or small twigs mixed with small amounts of mud.