The adjective hirundine refers to which birds?
Hawking (birds) Hawking (birds) Hawking is a feeding strategy in birds involving catching flying insects in the air. The term usually refers to a technique of sallying out from a perch to snatch an insect and then returning to the same or a different perch. This technique is called “flycatching” and some birds known for it are several families of “flycatchers”: Old World flycatchers, monarch flycatchers, and tyrant flycatchers. Other birds, such as swifts, swallows, and nightjars, also take insects on the wing in continuous aerial feeding. The term “hawking” comes from the similarity of this behavior to the way hawks take
Proper adjective because it refers to any one member of a group of animals. In English orthography, most proper nouns are capitalized, while most common nouns are not. As a result, the term "proper noun" has come to mean, in lay usage, "a noun that is capitalized", and "common noun" to mean "a noun that is not capitalized". Furthermore, English adjectives that derive from proper nouns are usually capitalized. Because of this, the terms "proper adjective" and "common adjective" have come to be used, with meanings analogous to the lay meanings of "proper noun" and "common noun". Proper adjectives are just capitalized