Lark adaptation to survive dust- & sandstorms & cold:

Skylark Alauda arvensis nostrils loosely covered by thin black bristles which may have a more feather-like basis;

   North African Short-toed Lark Calandrella brachydactyla hermonensis Syn rubiginosa  have tufts covering nostrils only;

   Steppe Lesser Short-toed Lark Calandrella rufescens heinei  have two rows of tufts: one covering nostrils and one covering gape.

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 Lesser Short-toed Lark Calandrella polatzki 12 02 2019 Fuerteventura La Oliva, Canary Islands,Spain c Ellen Sandberg

 Lesser Short-toed Lark Calandrella polatzki 12 02 2019 Fuerteventura La Oliva, Canary Islands,Spain c Ellen Sandberg

 Lesser Short-toed Lark Calandrella polatzki 12 02 2019 Fuerteventura La Oliva, Canary Islands,Spain c Ellen Sandberg
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Woodlark Lullula arborea 22102011 Rotterdam,The Netherlands c Ellen Sandberg 

Woodlark Lullula arborea 22102011 Rotterdam,The Netherlands c Ellen Sandberg 

Skylark Alauda arvensis 28102011 Brouwersdam,The Netherlands c Ellen Sandberg

Skylark Alauda arvensis 28102011 Brouwersdam,The Netherlands c Ellen Sandberg

Skylark Alauda arvensis 30062013 Slikken van Flakkee,The Netherlands c Ellen Sandberg