Assertion: martin's wing | /r/AtLocation | h. r. erythrogaster
Facets:
Source sentences:
text: The short wings, red belly and incomplete breast band of H. r. tytleri are also found in H. r. erythrogaster, and DNA analyses show that barn swallows from North America colonised the Baikal region of Siberia, a dispersal direction opposite to that for most changes in distribution between North America and Eurasia.