Migrating shorebirds, seabirds, insect-eaters and sparrows arrive as June also arrives.

We have all heard it — the solid thump of a bird hitting a window. And photos of lots of dead birds — victims of hitting a window near skyscrapers — are awful to see. But only one per cent of all window mortality is from those tall skyscrapers, while 44 per cent of all window strike mortality is due to collisions with windows on buildings that are one to three stories tall.

Evidence of nesting is easy to see. A bird carrying either vegetation or food means that they are building a nest or feeding young. And observing a recently hatched bird confirms that a nest was successful.

Migration takes many forms. Of course there are new arrivals that interest us, and of course there are transients that are passing through, but there are also late individuals that probably should have already migrated further north.

Abundant bright yellow birds means that it is the season for northbound migrating warblers. This is an exciting time to look for birds as we do not know what is around the next corner and their bright colors and loud singing makes their identification easier.

Brightly colored birds have arrived in various shades of blue, green, yellow, rufous, gray, brown, orange, black, red and white.